25 Best Fish Aquarium Heaters for February 2021

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FREESEA 50W Mini Aquarium Heater Fish Tank Submersible Heater with LED Temperature Display
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FREESEA 50W Mini Aquarium Heater Fish Tank Submersible Heater with LED Temperature Display

by Guang Zhou City Freesea Industrial Co.,Ltd
What We like

Touch button, cyclic adjust temperature , easy to use and Safety.

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Product Features

  • Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.
  • Note:this heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.
  • Temperature range: 59F~94F, display Fahrenheit F, this heater is designed for1~10 gallons tank.

temperature range: 59f~94f, display fahrenheit f, this heater is designed for1~10 gallons tank. automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Note:this heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.

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HITOP 25W 50W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (50W)
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HITOP 25W 50W Adjustable Aquarium Heater

Submersible Fish Tank Heater Thermostat with Suction Cup (50W)

by Haisen
What We like

Quick and easy installation, submersible fish tank heater, vertical or horizontal placement using suction cups. 1 extra powerful suction cups as your backup (total 3).

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Product Features

  • Automatic Constant Temperature Function: this fish heater, adjustable temperature 68 ~ 93 F, will shut off automatically when the temperature is reached, no extra adjustment is required.
  • Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • 50W aquarium heater, length 7.8-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 20 Gallons.
  • Bonus a stick-on thermometer, no need to buy another thermometer, 24-Hour Professional After-sales Service.

thickened glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter. automatic constant temperature function: this fish heater, adjustable temperature 68 ~ 93 f, will shut off automatically when the temperature is reached, no extra adjustment is required. 50w aquarium heater, length 7.8-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 20 gallons. bonus a stick-on thermometer, no need to buy another thermometer, 24-hour professional after-sales service.

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AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W Fish Tank Heater,External Temperature Controller LED Temperature Display with 2 Suction Cups Suitable for Marine Saltwater and Freshwater
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AQQA Submersible Aquarium Heater

100W/200W/300W/500W/800W Fish Tank Heater, External Temperature Controller LED Temperature Display with 2 Suction Cups Suitable for Marine Saltwater and Freshwater

by AQQA
What We like

Explosion-proof Quartz Glass Aquarium Heater Durable and SaferThe heater made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction,faster water heating and long lasting.2 hours heating 1.The shell is a high temperature resistant PC material, which can effectively protect the fish from scalding.

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Product Features

  • LED External Controller with Indicator LightThe controller is not waterproof, please keep away from waterLED digital display screen shows the current water temperature and preset temperature.The number the left on the controller is the current water temperature, and the number on the right is the set temperature,torch light and surrounding lights flicker means heating,torch light and surrounding lights not flicker indicate constant temperature.
  • Temperatures Ranges 68 to 93,Automatic HeatingThe heating rod built-in thermometer,When the water temperature is lower than the set temperature by 1, the heater will automatically heat up, and stop heating when the water temperature is consistent with the set temperature.Fahrenheit and Celsius can be converted to each other,Pressing and Press and hold "+" and "-" at the same time, Fahrenheit and Celsius will be converted into each other after 5 seconds.
  • Memory Function,Dry Burning-resistant ProtectionController with memory function,If power is shut off,the heater will keep the temperature settings until it powers on again,no need to worry about pets when you going out.When the heating rod is 5cm above the water surface, the heating rod will automatically power off, and the controller will display "E1". When submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller.

Memory function,dry burning-resistant protectioncontroller with memory function,if power is shut off,the heater will keep the temperature settings until it powers on again,no need to worry about pets when you going out.when the heating rod is 5cm above the water surface, the heating rod will automatically power off, and the controller will display "e1". when submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller. Temperatures ranges 68 to 93,automatic heatingthe heating rod built-in thermometer,when the water temperature is lower than the set temperature by 1, the heater will automatically heat up, and stop heating when the water temperature is consistent with the set temperature.fahrenheit and celsius can be converted to each other,pressing and press and hold "+" and "-" at the same time, fahrenheit and celsius will be converted into each other after 5 seconds. Led external controller with indicator lightthe controller is not waterproof, please keep away from waterled digital display screen shows the current water temperature and preset temperature.the number the left on the controller is the current water temperature, and the number on the right is the set temperature,torch light and surrounding lights flicker means heating,torch light and surrounding lights not flicker indicate constant temperature.

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Mylivell Aquarium Heater Submersible Auto Thermostat Heater,Fish Tank Water Heater and Adjustable Temperature with Suction Cup-50W
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Mylivell Aquarium Heater Submersible Auto Thermostat Heater

Fish Tank Water Heater and Adjustable Temperature with Suction Cup-50W

by Mylivell
What We like

Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.

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Product Features

  • Convenient and Safe: Our aquarium heater thermostat has two suction cups for attachment to the fish tank. The polarized plug prevents electrical shock.
  • Fully Submersible. Power: 50W. Suggested water volume: 20gal.
  • Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 20~34C(65 F - 93 F), and the display is easy to read.
  • High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.

High quality: aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation. Adjustable temperature: the temperature of the fish tank heater can be adjusted automatically. temperature setting range: 20~34c(65 f - 93 f), and the display is easy to read. Convenient and safe: our aquarium heater thermostat has two suction cups for attachment to the fish tank. the polarized plug prevents electrical shock. Fully submersible. power: 50w. suggested water volume: 20gal.

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PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks
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PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip

Under 6 Gallon Fish Tanks

by PULACO
What We like

Quick and Easy Installation:Vertical or horizontal placement using, Aquarium heater automatic temperature control 78, no need to adjust temperature, easy to operate, fishes happy.

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Product Features

  • Note: Do not operate or leave product plugged in when it is outside of water, Children should be use this heater under adult's guidance.
  • Betta HeaterThis Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank.
  • How it Works: Plug in, red light turns on, the heater will start working until water temperature up to 78F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78F. Accuracy3F

Betta heaterthis fish tank heater should be 100% submerged into water, ideal for small glass or acrylic desktop aquariums up 1 to 6 gallons, not suitable for less than 1 gallon tank. Note: do not operate or leave product plugged in when it is outside of water, children should be use this heater under adult's guidance. How it works: plug in, red light turns on, the heater will start working until water temperature up to 78f, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78f. accuracy3f

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VIVOSUN 300W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller
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VIVOSUN 300W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

by VIVOSUN
What We like

EASY TO SETUP: 300W submersible heater is suitable for 31.7 to 66 gallons aquariums; Vertical or horizontal installation and ensure the device is fully submerged underwater

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Product Features

  • WIDE COMPATIBILITY: The fish tank aquarium heater has CE, FCC and ROHS certification and the plug has a UL certification; Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • PRECISE TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within 1/2F; Provide the best living environment for your aquatic creatures
  • EXTERNAL TEMPERATURE CONTROLLER: The touch-button controller adjusts the temperature without getting your hands wet. Its easy to control the temp from 68/20C to 94/34C; Check the size chart to find your desired fish tank heater

Precise temperature control: an intelligent ic chip controls the heater temperature, making the temperature difference within 1/2f; provide the best living environment for your aquatic creatures Wide compatibility: the fish tank aquarium heater has ce, fcc and rohs certification and the plug has a ul certification; applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems External temperature controller: the touch-button controller adjusts the temperature without getting your hands wet. its easy to control the temp from 68/20c to 94/34c; check the size chart to find your desired fish tank heater

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LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Over Temperature Protection System, Suitable for Marine Saltwater and Freshwater
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LUYS Aquarium Heater

Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Over Temperature Protection System, Suitable for Marine Saltwater and Freshwater

by LUYS
What We like

Wide Range of UseThis aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. There are strong suction cups on the heater guard and the thermometer, it's easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.

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Product Features

  • Intelligent Water Sensor and Over Temperature ProtectionThis aquarium heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
  • Explosion-proof Quartz MaterialThe aquarium heater is made of high-quality quartz glass tube, it's very durable and explosion-proof, this fish tank heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage. And the stronger black protective container is scald-preventing for your aquatic organisms and your safety.
  • Digital LED Display Controllerthe external IC temp controller of the fish tank heater can show the water temp with 2 red LED digits. The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds. To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.

Intelligent water sensor and over temperature protectionthis aquarium heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety. Explosion-proof quartz materialthe aquarium heater is made of high-quality quartz glass tube, it's very durable and explosion-proof, this fish tank heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage. and the stronger black protective container is scald-preventing for your aquatic organisms and your safety. Digital led display controllerthe external ic temp controller of the fish tank heater can show the water temp with 2 red led digits. the temperature in fahrenheit and celsius is displayed, which can be switched by pressing and holding the button for a few seconds. to set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.

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U-picks Submersible Aquarium Heater 300W/100W/500W Fish Tank Heater with Intelligent External LED Digital Temperature Controller and Dual Temp Displays for Turtle Betta Fish Tank 5-130 Gallon
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U-picks Submersible Aquarium Heater 300W/100W/500W Fish Tank Heater with Intelligent External LED Digital Temperature Controller and Dual Temp Displays for Turtle Betta Fish Tank 5-130 Gallon

by U-picks
What We like

[High Quality Material]---Made of thicker quartz, this heater is shatter-proof and blast-proof. The heater cover is compact designed, which is heat resistant that will protect you little fish from scalding. Strong suction cup bracket help stably fix the heater in every corner of the fish tank.

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Product Features

  • [Smart Heating]---When the water temperature is lower than the set temperature (red indicator), the fish heater starts to work until the water temperature reaches the set temperature (blue indicator). It can always provide stable water temperature for your beloved fish.
  • [Dual Temp Displays]---With dual accurate LED digital temperature displays, you can read & set the water temperature at the same time. It is very easy and convenient for you to recognize and observe the temp change in real time even in the night!
  • [Fully Submersible Aquarium Heater]---Voltage 110-120V/60HZ, power 300 watt, heater rod length 10.8 inches, suitable for aquarium/fish/turtle/betta tank 80-130 gallon. The controller power cord is 47 inches, The heater power cord is 67 inches and the temperature control range from 68~93F.
  • [External Controller]---This 300W submersible heater is adjusted by an external controller, which you can mount on the outside edge of the tank. Its convenient and safe for you to set the temperature, no need to take the heater out from water and risk burning yourself.

[fully submersible aquarium heater]---voltage 110-120v/60hz, power 300 watt, heater rod length 10.8 inches, suitable for aquarium/fish/turtle/betta tank 80-130 gallon. the controller power cord is 47 inches, the heater power cord is 67 inches and the temperature control range from 68~93f. [smart heating]---when the water temperature is lower than the set temperature (red indicator), the fish heater starts to work until the water temperature reaches the set temperature (blue indicator). it can always provide stable water temperature for your beloved fish. [external controller]---this 300w submersible heater is adjusted by an external controller, which you can mount on the outside edge of the tank. its convenient and safe for you to set the temperature, no need to take the heater out from water and risk burning yourself. [dual temp displays]---with dual accurate led digital temperature displays, you can read & set the water temperature at the same time. it is very easy and convenient for you to recognize and observe the temp change in real time even in the night!

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hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 800W Submersible Fish Heater for 120-180 Gallon Freshwater Marine Tank
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hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 800W Submersible Fish Heater for 120-180 Gallon Freshwater Marine Tank

by hygger
What We like

Easy to set temperature without getting hands wet. Build in hand button, Keep pushing the button. It will cycle through all the set temperatures. Temperature can be precisely adjusted from 70 to 94F

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Product Features

  • 800W aquarium heater, voltage 110-120V, suitable for tank capactiy 120-180 gallon freshwater and marine water aquariums
  • Made with premium titanium and double sealed by black protective guard, this fish tank heater is resistant to explosion and corrosion, and protect fish and other livestocks from punching and scalding
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down.
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Temp accuracy is +/- 1F.

This fully submersible aquarium heater enables memory function and over heat protection. auto shut off when over-heats, resets when it cools down. Made with premium titanium and double sealed by black protective guard, this fish tank heater is resistant to explosion and corrosion, and protect fish and other livestocks from punching and scalding 800w aquarium heater, voltage 110-120v, suitable for tank capactiy 120-180 gallon freshwater and marine water aquariums Build-in external ic temp controller, easy to read blue led digital number shows real time water temperature. temp accuracy is +/- 1f.

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Small Size Submersible Aquarium Heater, Intelligent Frequency Conversion, Mini Fish Tank Heater 50W 100W with Built-in Thermometer, LED Temperature Display, External Temperature Controller (50W)
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YukiHalu Small Size Submersible Aquarium Heater

Intelligent Frequency Conversion, Mini Fish Tank Heater 50W 100W with Built-in Thermometer, LED Temperature Display, External Temperature Controller (50W)

by YukiHalu
What We like

Easy to Read & Built-in ThermometerDual built-in temperature sensor. Dual LED display. The water temperature will be displayed on both the heater and the external temperature controller in real time.

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Product Features

  • Easy to adjust the temperature without wet your handsThe heater is its external controller to set the temp instead of dipping your hands into your tank to rotate a dial found on most glass tube heaters. Here you can change the temperature as many times as you like without having to ever wet your hands or contaminating your tank. 3 Strong suction cups, easy to install.
  • 1 Accuracy & Intelligent Frequency ConversionThanks to advanced Intelligent Frequency Conversion Technology, the temperature accuracy is up to 1. If the temperature is lower than the target value of 0.2F, the heater works at a Variable frequency to keep the temperature constant. If the water temperature is lower than the target temperature of 1F, the heater will work at full power. Compare to traditional heater, this new technology will cut down 49% electricity bill for you.
  • Compact and Quiet, 50W Heater YukiHalu small aquarium heater is suitable for 1~10 gallon mini fish tanks. Much more compact than a comparable 50W glass tube heater and takes less space in your tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.

Easy to adjust the temperature without wet your handsthe heater is its external controller to set the temp instead of dipping your hands into your tank to rotate a dial found on most glass tube heaters. here you can change the temperature as many times as you like without having to ever wet your hands or contaminating your tank. 3 strong suction cups, easy to install. Compact and quiet, 50w heater YukiHalu small aquarium heater is suitable for 1~10 gallon mini fish tanks. much more compact than a comparable 50w glass tube heater and takes less space in your tank, easy to hide in the tank. temperature can be accurately adjusted from 64 to 93f. this heater suitable for both saltwater and freshwater. the rated voltage is 100-130v. 1 accuracy & intelligent frequency conversionthanks to advanced intelligent frequency conversion technology, the temperature accuracy is up to 1. if the temperature is lower than the target value of 0.2f, the heater works at a variable frequency to keep the temperature constant. if the water temperature is lower than the target temperature of 1f, the heater will work at full power. compare to traditional heater, this new technology will cut down 49% electricity bill for you.

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hygger 50W Mini Inline Quartz Glass Aquarium Heater with External Controller, Adjustable Submersible Betta Fish Tank Thermostat for 5-15 Gallon
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hygger 50W Mini Inline Quartz Glass Aquarium Heater with External Controller

Adjustable Submersible Betta Fish Tank Thermostat for 5-15 Gallon

by hygger
What We like

For Fish Tank 5-15 gallon50W aquarium heater, voltage AC110-120V 60HZ, power cord is 4.6ft. Heater rod length is 5 inch, mini compact heater for small fish tank use. Perfect for betta tank. A very compact heater, easy to hide in the tank

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Product Features

  • Automatic Stop & RestartEffectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2 below the set temp.The indicator light on the controller will be on red when it's heating, will be off when it stop heating
  • Durable Quartz Glassthis aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more
  • Fully Submersiblethis fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow
  • With Built-in Thermometeryou can set the the temp from 68 to 90,temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer

Fully submersiblethis fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow With built-in thermometeryou can set the the temp from 68 to 90,temp exactness is within 2 degrees in fahrenheit. there is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer Durable quartz glassthis aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more Automatic stop & restarteffectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2 below the set temp.the indicator light on the controller will be on red when it's heating, will be off when it stop heating

12
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Orlushy 100W Submersible Aquarium Heater, Fish Tank Heater with Adjustable Temperature and 2 Suction Cups for 10-20 Gallon Tank 6ft Power Cord
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Orlushy 100W Submersible Aquarium Heater

Fish Tank Heater with Adjustable Temperature and 2 Suction Cups for 10-20 Gallon Tank 6ft Power Cord

by NOVA
What We like

Updated Design: The aquarium heater is made of quartz glass, featuring corrosion-proof and explosion-proof. It adopts brand new structural design and helps increase dispersing heat area and shorten the length of the heating rob, thereby raising heating efficiency by 20%

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Product Features

  • Tips: 1.Please disconnect the power supply, remove the heater out the water after cooling it down for 10 minutes before cleaning the aquarium or changing the water 2.Please ensure the heater is fully submerged in water
  • Intelligent Safety Protection: When the indicator lamp is on, the heater starts to heat up the water. With automatic shut-off function and the thermostat inside, the heater maintains the tank water in stable and constant temp, automatically stop or start heating to keep the temp stability
  • Wide Range of Application: The heater is suitable for use in marine water or fresh water. With 2 strong suction cups, the heater can be installed horizontally or vertically to the tank side and held in place well for aquariums, fish tanks, aquacultures and hydroponic systems
  • 100 Watt Aquarium Heater: 100w aquarium heater is for 10-20 gallons fish tank, voltage 120V/60Hz, power cord 6(ft), heating rob length-9.5 inches.The temperature can be set to the values ranging from 68 to 93F, please choose the right wattage aquarium heater according to our size chart

100 watt aquarium heater: 100w aquarium heater is for 10-20 gallons fish tank, voltage 120v/60hz, power cord 6(ft), heating rob length-9.5 inches.the temperature can be set to the values ranging from 68 to 93f, please choose the right wattage aquarium heater according to our size chart Intelligent safety protection: when the indicator lamp is on, the heater starts to heat up the water. with automatic shut-off function and the thermostat inside, the heater maintains the tank water in stable and constant temp, automatically stop or start heating to keep the temp stability Tips: 1.please disconnect the power supply, remove the heater out the water after cooling it down for 10 minutes before cleaning the aquarium or changing the water 2.please ensure the heater is fully submerged in water Wide range of application: the heater is suitable for use in marine water or fresh water. with 2 strong suction cups, the heater can be installed horizontally or vertically to the tank side and held in place well for aquariums, fish tanks, aquacultures and hydroponic systems

13
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Uniclife 100 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 20 Gallon
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Uniclife 100 Watt Aquarium Heater with Thermometer

Fish Tanks Heater of 20 Gallon

by Uniclife
What We like

Measurement 9.7" x 1" (L x D). Only allowing for vertical or horizontal installment.

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Product Features

  • Adjust temperature by top red knob, range 68F-93F. Tube temperature displayed.
  • Can be used in both freshwater and saltwater, applicable for 10~25 gallon fish tanks.
  • Package include aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1.

Package include aquarium heater x 1; suction cups x 3; stick-on thermometer x 1. Adjust temperature by top red knob, range 68f-93f. tube temperature displayed. Can be used in both freshwater and saltwater, applicable for 10~25 gallon fish tanks.

14
8.8
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Orlushy Submersible Aquarium Heater 300W-Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups Suitable for Marine Reef Fish Tank Sump
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Orlushy Submersible Aquarium Heater 300W-Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups Suitable for Marine Reef Fish Tank Sump

by Nova pet supplies co.LTD
What We like

Precise temperature dial from 68 to 89F allows for complete control of aquatic climate within a 1-degree difference.

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Product Features

  • Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached
  • It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals.
  • 300W aquarium heater is suitable for 50 to 80 gallons aquariums,Length - 11 inch,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
  • Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.

Adjustable aquarium fish tank water heater sensitive and reliable thermostat maintains uniform temperature. automatic shut off when the temperature is reached 300w aquarium heater is suitable for 50 to 80 gallons aquariums,length - 11 inch,voltage 110-120v, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart. Explosion proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank. It shows an area to adjust the temperature. it's not exactly accurate but it turns easy and can be adjusted at small intervals.

15
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hygger 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 120-180 Gallon for Saltwater and Freshwater
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hygger 800W Aquarium Heater

Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 120-180 Gallon for Saltwater and Freshwater

by hygger
What We like

ANTI-DRY PROTECTION: When the heating rod is exposed to air, display ER fault code and the heater will shut off automatically. When the heating rod is completely immersed in water, it will start working automatically. Effectively extend the service life.

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Product Features

  • LED DIGITAL DISPLAY CONTROLLER: Displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 F, easy to read. 4 kinds of work instructions - Working/Malfunction/ Thermostatic/ Out of water, easy to understand. Child Lock"KEY": need to touch 3 seconds to set the temperature.
  • HIGH-QUALITY MATERIALS: Built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of 1 F; high temperature resistant ABS material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity. Strong suction cup bracket, can stably fix the heater in every corner of the fish tank.
  • INTELLIGENT THERMOSTAT: Over-temperature protection prevents "cooking fish". When the water temp exceeds about 93.5 F, start alternately flashing EE fault code; and over 97, the heater will stop heating automatically. When the water temp cool down to 93, the heater will start working automatically. In addition, it has a power-off memory function and no need to set it again.
  • RAPID HEATING: Fastest 5 seconds warming, with intelligent circuit board, the outside is wrapped with aluminum material to accelerate heat conduction and protection. Automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy.

Rapid heating: fastest 5 seconds warming, with intelligent circuit board, the outside is wrapped with aluminum material to accelerate heat conduction and protection. automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy. Led digital display controller: displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 f, easy to read. 4 kinds of work instructions - working/malfunction/ thermostatic/ out of water, easy to understand. child lock"key": need to touch 3 seconds to set the temperature. High-quality materials: built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of 1 f; high temperature resistant abs material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity. strong suction cup bracket, can stably fix the heater in every corner of the fish tank. Intelligent thermostat: over-temperature protection prevents "cooking fish". when the water temp exceeds about 93.5 f, start alternately flashing ee fault code; and over 97, the heater will stop heating automatically. when the water temp cool down to 93, the heater will start working automatically. in addition, it has a power-off memory function and no need to set it again.

16
8.8
SCORE
Aquarium Heater Submersible 50W/200W/300W Fish Tank Water Heater Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Fish Betta Tanks with 2 Suction Cups (200W)
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Supyouleg Aquarium Heater Submersible 50W/200W/300W Fish Tank Water Heater Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Fish Betta Tanks with 2 Suction Cups (200W)

by Supyouleg
What We like

Adjustable Temperature The temperature of the water heater can be adjusted, rotate the orange dial can easily set the accurate temperature which you want. Temperature range is 20-34(68-93 ).

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Product Features

  • Circulating Working Mode - Our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. This working mode avoid overheating your fish.
  • Upgraded Heater - Our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank.
  • Power The power of the fish thank heater is 200 W, which is suit for 40 to 60 gallons fish tank, low energy consumption. Voltage is 110V-120V. Cable length is 55 inch.
  • Indicator Light - This small aquarium heater thermostat has a indicator light to let you know when the heater is on. It will be red when heating and off when the proper temperature has been reached. It will stop work automatic when water reach the temperature which you set, and begin to work when water temperature bellow setting temperature.

Power the power of the fish thank heater is 200 w, which is suit for 40 to 60 gallons fish tank, low energy consumption. voltage is 110v-120v. cable length is 55 inch. Upgraded heater - our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank. Circulating working mode - our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. this working mode avoid overheating your fish. Indicator light - this small aquarium heater thermostat has a indicator light to let you know when the heater is on. it will be red when heating and off when the proper temperature has been reached. it will stop work automatic when water reach the temperature which you set, and begin to work when water temperature bellow setting temperature.

17
8.8
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POPETPOP [Upgraded 400W Aquarium Heater - Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display
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POPETPOP [Upgraded 400W Aquarium Heater

Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display

by POPETPOP
What We like

[UPGRADED] MORE PRECISE TEMPERATURE - Upgraded sensing probes on the top of heater provides more precise induction that reduces temperature error which allows you check the temperature of the aquarium more easily to prevent the difference temperature in water from making the fish sick.

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Product Features

  • [UPGRADED] DURABLE HEATING WIRE - The aquarium heater was changed from the original iron-chromium wire to the nickel-chromium wire to ensure the heater has longer life and precisely control heater temperature. It is extremely durable and stable, and faster heating than normal glass heaters.
  • SIMPLE OPERATION - The 400w fish tank heater can be used in 70-80gal gallon fresh water and salt water aquariums. Easy to set temp from 20C ~ 34C(68~ 94). Note: Don't expose the heater out of water surface as this may cause damage to the heater.
  • EASY TO ADJUST TEMPERATURE - LED digital display temperature that is easy to observe the temperature set by the heater. Using intelligent IC chip for more precise temperature control with less error (1C/2). The touch button ensures that the hand is not wet when adjusting the temperature.
  • SAFETY PROTECTION - The fish tank aquarium heater has CE, FCC and ROHS certification. When sensing probe is exposed in the air or detected the water is overheating, the heater will stop heating. Giving your aquarium fish, amphibians, turtles safety protection.

[upgraded] durable heating wire - the aquarium heater was changed from the original iron-chromium wire to the nickel-chromium wire to ensure the heater has longer life and precisely control heater temperature. it is extremely durable and stable, and faster heating than normal glass heaters. easy to adjust temperature - led digital display temperature that is easy to observe the temperature set by the heater. using intelligent ic chip for more precise temperature control with less error (1c/2). the touch button ensures that the hand is not wet when adjusting the temperature. simple operation - the 400w fish tank heater can be used in 70-80gal gallon fresh water and salt water aquariums. easy to set temp from 20c ~ 34c(68~ 94). note: don't expose the heater out of water surface as this may cause damage to the heater. safety protection - the fish tank aquarium heater has ce, fcc and rohs certification. when sensing probe is exposed in the air or detected the water is overheating, the heater will stop heating. giving your aquarium fish, amphibians, turtles safety protection.

18
8.8
SCORE
GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat (200W for 25-75Gal)
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GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat (200W for 25-75Gal)

by Mylivell
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19
8.6
SCORE
Zacro Aquarium Heater, 100W Submersible Digital Display Mini Fish Tank Heater with Intelligent LED Temperature Display and External Temperature Controller, for 10-20gal Fish Tank
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Zacro Aquarium Heater

100W Submersible Digital Display Mini Fish Tank Heater with Intelligent LED Temperature Display and External Temperature Controller, for 10-20gal Fish Tank

by Zacro
What We like

INTELLIGENT TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within 2F. Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Provide the best living environment for your aquatic creatures.

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Product Features

  • DIGITAL DISPLAY&REMOTE CONTROLLER: Digital LED display shows real time water temperature. Heating temperature range from 68 to 91F. The remote-button controller adjusts the temperature without getting your hands wet.
  • SHUT OFF WHEN OUT OF WATER: Please note that this a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of the heater is out of water it will auto shut off and the led displaying Er. The product uses explosion-proof quartz tube and is equipped with a plastic anti-collision sheath to prevent your aquatic organisms from being injured by touching the heating rod.
  • Our heating rods can be used continuously for up to 10,000 hours and can display the use time. Let you replace the heating rod in time to ensure the continuous water temperature.
  • AUTOMATIC OVERHEATING PROTECTION: Once set the desired temperature, this fully submersible heater lights on red indicates that it is heating. It will auto shut off once it reach set temperature. If the heating rod temperature reaches 96.8F (36C), the heating rod will stop heating. The thermometer can observe the water temperature at any time.

Our heating rods can be used continuously for up to 10,000 hours and can display the use time. let you replace the heating rod in time to ensure the continuous water temperature. Digital display&remote controller: digital led display shows real time water temperature. heating temperature range from 68 to 91f. the remote-button controller adjusts the temperature without getting your hands wet. Automatic overheating protection: once set the desired temperature, this fully submersible heater lights on red indicates that it is heating. it will auto shut off once it reach set temperature. if the heating rod temperature reaches 96.8f (36c), the heating rod will stop heating. the thermometer can observe the water temperature at any time. Shut off when out of water: please note that this a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of the heater is out of water it will auto shut off and the led displaying er. the product uses explosion-proof quartz tube and is equipped with a plastic anti-collision sheath to prevent your aquatic organisms from being injured by touching the heating rod.

20
8.5
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Orlushy Mini Aquarium Heater 50W,Small Fish Tank Heaters with LED Digital Temperature Display and External Temperature Controller for Betta Frogs Newts Turtles (50W)
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Orlushy Mini Aquarium Heater 50W

Small Fish Tank Heaters with LED Digital Temperature Display and External Temperature Controller for Betta Frogs Newts Turtles (50W)

by Nova pet supplies co.LTD
What We like

LED Display Design: LED digital display, External temperature controller,easy to use and Safety.

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Product Features

  • Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • The Digital Smart Aquarium Heater is a heater and thermometer combined into one, eliminating the need for more equipment in smaller tanks.
  • 50W Submersible Aquarium Heater is Suitable for 3-10 Gallon.Temperature range: 65F~93F18C~34C, power cord is 5 FT.
  • Please be sure that the heater needs to be completely sunk into water, horizontal or vertical fixed in the water cycle better place, and let the working light can be seen as clear as possible.

50w submersible aquarium heater is suitable for 3-10 gallon.temperature range: 65f~93f18c~34c, power cord is 5 ft. the digital smart aquarium heater is a heater and thermometer combined into one, eliminating the need for more equipment in smaller tanks. applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems please be sure that the heater needs to be completely sunk into water, horizontal or vertical fixed in the water cycle better place, and let the working light can be seen as clear as possible.

21
8
SCORE
Uniclife 200 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 50 Gallon
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Uniclife 200 Watt Aquarium Heater with Thermometer

Fish Tanks Heater of 50 Gallon

by Uniclife
What We like

Measurement 11.2" x 1" (L x D). Only allowing for vertical or horizontal installment.

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Product Features

  • Adjust temperature by top red knob, range 68F-93F. Tube temperature displayed.
  • Can be used in both freshwater and saltwater, applicable for 25-50 gallon fish tanks.
  • Package include aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1.

Package include aquarium heater x 1; suction cups x 3; stick-on thermometer x 1. Can be used in both freshwater and saltwater, applicable for 25-50 gallon fish tanks. Adjust temperature by top red knob, range 68f-93f. tube temperature displayed.

22
7.7
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hygger 200W Titanium Aquarium Heater for Salt Water and Fresh Water, Digital Submersible Heater with External IC Thermostat Controller and Thermometer, for Fish Tank 20-45 Gallon
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hygger 200W Titanium Aquarium Heater for Salt Water and Fresh Water

Digital Submersible Heater with External IC Thermostat Controller and Thermometer, for Fish Tank 20-45 Gallon

by hygger
What We like

Durable Titanium Tubethis seawater resistant titanium aquarium heater is good for use in salt water and fresh water, service life can be 3 years or more. Very compact small, easy to hide in the tank. Don't suggest to use it in sump. The diameter of the titanium tube is19mm, you can buy suction cups suitable for this size when you need to get that replaced.

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Product Features

  • Wide Temperature RangeWith the thermostat controller you can set the temp from 32to 104, control precision is 1, please set the right temp for your aquarium pets. The separate thermometer can detect a temperature from -68 to 140, the measurement accuracy is 0.2 plus or minus, very sensitive
  • Fully Automatic Controlvery easy and reliable to use. After well installing the aquarium heater and the thermometer, you just need to set the desired heating temp, it will stop heating when the water temp reaches to the set temp, it will automatically restart heating when the water temp is 1 less than the set temp. The controller has temp setting remember function
  • Digital LED Displaythe IC temp controller can show the water temp and set temp at the same time, and there is a indicator light to show the heating status. You can press the 'up' key to shift degree unit between Celsius and Fahrenheit
  • For Fish Tank 20-45 Gallonvoltage 110-120V, power 200W, heater rod length 10.7inch. The heater and controller power cords are the same length 5.5ft, the thermometer cord is 4.4ft. There are mounting holes on the temp controller back for hanging on the wall

Wide temperature rangewith the thermostat controller you can set the temp from 32to 104, control precision is 1, please set the right temp for your aquarium pets. the separate thermometer can detect a temperature from -68 to 140, the measurement accuracy is 0.2 plus or minus, very sensitive Digital led displaythe ic temp controller can show the water temp and set temp at the same time, and there is a indicator light to show the heating status. you can press the 'up' key to shift degree unit between celsius and fahrenheit For fish tank 20-45 gallonvoltage 110-120v, power 200w, heater rod length 10.7inch. the heater and controller power cords are the same length 5.5ft, the thermometer cord is 4.4ft. there are mounting holes on the temp controller back for hanging on the wall Fully automatic controlvery easy and reliable to use. after well installing the aquarium heater and the thermometer, you just need to set the desired heating temp, it will stop heating when the water temp reaches to the set temp, it will automatically restart heating when the water temp is 1 less than the set temp. the controller has temp setting remember function

23
7.3
SCORE
ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon
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ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon

by ZEETOON
What We like

High Quality: ZEETOON High Power Aquarium Warmer Made of high quality titanium alloy, Corrosion-proof Suitable for Freshwater and Seawater, IP68 waterproof, anti explosion & cracking, it is scald-preventing for your pets, safer and more stable to use. Powerful suction cup, firmly fixed in the tank, do not worry about the heater will be drop & power off. We provide 1 year quality assurance for this product, provide replacement items for any product problems within 1 year after your purchase it

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Product Features

  • High Quality: ZEETOON High Power Aquarium Warmer Made of high quality titanium alloy, Corrosion-proof Suitable for Freshwater and Seawater, IP68 waterproof, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it
  • 300W Stable Output Power: Fully submersible digital thermostat fish heater. Specific Especially suitable for aquariums of medium to large glass materials up to 80 gallons / 250 liters, not suggested plastic tank. ZEETOON Intelligent Temperature regulate Heater provide a constant warm for your pet fish to stay healthy to prevent the fish sick. And We Also Recommend To Position It Near A Strong Water Flow, So That The Whole Aquarium Are In The Same Temperature
  • Safety: The External Adjustable Control, Our fish tank heaters can quickly to adjust the temperature without getting your hands wet. Prevent electric shock & burns. Keep you & your family safe. It has a powerful Security System that Automatically Stop Heating When The Heater is Out Of Water & would automatically shut off when fault occurs or overheating to avoid pets in high temperature. Giving your fish, amphibians, turtles safety protection. Please make sure the heater is Fully Submersible
  • Accurate Thermostat: Adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. The temperature of the heater can be manually adjust the temperature you need between 20-34/1 (68F-93F/2F) . It works will automatically turn on/off to achieve the stably temperature setting, You can also change the Fahrenheit/Celsius display according to your reading habits. Just press and hold the SET button for 6s. Energy-saving life, you will be at your fingertips

300w stable output power: fully submersible digital thermostat fish heater. specific especially suitable for aquariums of medium to large glass materials up to 80 gallons / 250 liters, not suggested plastic tank. ZEETOON intelligent temperature regulate heater provide a constant warm for your pet fish to stay healthy to prevent the fish sick. and we also recommend to position it near a strong water flow, so that the whole aquarium are in the same temperature Accurate thermostat: adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. the temperature of the heater can be manually adjust the temperature you need between 20-34/1 (68f-93f/2f) . it works will automatically turn on/off to achieve the stably temperature setting, you can also change the fahrenheit/celsius display according to your reading habits. just press and hold the set button for 6s. energy-saving life, you will be at your fingertips Safety: the external adjustable control, our fish tank heaters can quickly to adjust the temperature without getting your hands wet. prevent electric shock & burns. keep you & your family safe. it has a powerful security system that automatically stop heating when the heater is out of water & would automatically shut off when fault occurs or overheating to avoid pets in high temperature. giving your fish, amphibians, turtles safety protection. please make sure the heater is fully submersible High quality: ZEETOON high power aquarium warmer made of high quality titanium alloy, corrosion-proof suitable for freshwater and seawater, ip68 waterproof, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. we provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it

24
7.2
SCORE
hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallon
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hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallon

by hygger
What We like

Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90F (16C ~ 32C). Just press set button to desired temperature, it blinks 3 seconds and begins to work

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Product Features

  • Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding
  • 300 watt aquarium heater, voltage 110-120 V, heater rod 7.7 inches long, suitable for tank capacity 30-60 gallon freshwater and saltwater aquariums
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1F
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down

Build-in external ic temp controller, easy to read blue led digital number shows real time water temperature. heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. temp accuracy is +/- 1f 300 watt aquarium heater, voltage 110-120 v, heater rod 7.7 inches long, suitable for tank capacity 30-60 gallon freshwater and saltwater aquariums This fully submersible aquarium heater enables memory function and over heat protection. auto shut off when over-heats, resets when it cools down Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding

25
7.1
SCORE
Submersible Aquarium Heater 300W Fish Tank Heater with Dual Temperature Displays and Temp Controller Adjustable for Turtle Betta Fish Tank 25-80 Gallon
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BinChang Submersible Aquarium Heater 300W Fish Tank Heater with Dual Temperature Displays and Temp Controller Adjustable for Turtle Betta Fish Tank 25-80 Gallon

by BinChang
What We like

Dual Temperature Displays It shows the water temp and set temp at the same time, helping you easily recognize and observe the temp change in real time even in the night!

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Product Features

  • External Temperature Controller This submersible aquarium heater is designed to control the temperature externally, which is convenient and safe for you to adjust temperature and no need to take the heater out from water and risk burning yourself.
  • PLEASE NOTE Aquarium heater should be fully submerged into the water. Please unplug the power supply when cleaning the fish tank, changing aquarium water or taking the heater out (and should let it cool in the water for a while before you take it out).
  • High Quality It is made of shock resistant and shatter proof quartz for fresh or marine water. Besides, the heatproof cover will also protect you little fish from scalding.
  • 300 Watt Heater This 300W is suitable for 25-80 gallons tank, heater length is 10.8 inches, power cord length is 47 inches+67 inches, please choose the right wattage aquarium heater according to our size chart.

High quality it is made of shock resistant and shatter proof quartz for fresh or marine water. besides, the heatproof cover will also protect you little fish from scalding. Please note aquarium heater should be fully submerged into the water. please unplug the power supply when cleaning the fish tank, changing aquarium water or taking the heater out (and should let it cool in the water for a while before you take it out). 300 watt heater this 300w is suitable for 25-80 gallons tank, heater length is 10.8 inches, power cord length is 47 inches+67 inches, please choose the right wattage aquarium heater according to our size chart. External temperature controller this submersible aquarium heater is designed to control the temperature externally, which is convenient and safe for you to adjust temperature and no need to take the heater out from water and risk burning yourself.

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