25 Best Glass Aquarium Heaters
for March 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.7
SCORE
hygger Mini Glass Aquarium Heater Adjustable LED Digital Temperature Display Small Tank Heater for Turtle Betta Fish Bowl with Protective Guard 100W

hygger Mini Glass Aquarium Heater Adjustable LED Digital Temperature Display Small Tank Heater for Turtle Betta Fish Bowl with Protective Guard 100W

by hygger
What We like

For Fish Tank 6.5-13 Gallon100 watt aquarium heater is ideal for small fish bowls and aquariums 6.5 to 13 gallons; voltage/frequency: 110 120volt/60hertz; it is ideal for betta fish and turtle tank

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Product Features

  • Digital LED DisplayExternal temperature setting control avoids getting hands wet, digital LED display shows real time water temperature. Heating temperature range from 63 to 94F. Control accuracy is +/- 1F.
  • Protective GuardMade of high quality quartz glass, waterproof double seal material, covered with protective case, shatter-resistant construction, this fish tank heater keep your fish from scalding and punching
  • Automated Shut Off SystemOnce you set the desired degree of heat, this fully submersible heater lights on red and begin to heating. It will auto shut off once it reach set temperature
  • Run Dry ProtectionThis egg-shaped small aquarium heater automatically shut itself off once it come out of water which ensures the safety of your pet, especially turtle and frog

Automated shut off systemonce you set the desired degree of heat, this fully submersible heater lights on red and begin to heating. it will auto shut off once it reach set temperature Run dry protectionthis egg-shaped small aquarium heater automatically shut itself off once it come out of water which ensures the safety of your pet, especially turtle and frog Digital led displayexternal temperature setting control avoids getting hands wet, digital led display shows real time water temperature. heating temperature range from 63 to 94f. control accuracy is +/- 1f. Protective guardmade of high quality quartz glass, waterproof double seal material, covered with protective case, shatter-resistant construction, this fish tank heater keep your fish from scalding and punching

2
9.6
SCORE
CNZ Aquarium Quartz Glass Submersible Heaters (50-watt)

CNZ Aquarium Quartz Glass Submersible Heaters (50-watt)

by CNZ
What We like

On/off indicator light allows simple, visual confirmation of heater operation

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Product Features

  • Fast heating and accurate heating temperature range is 68-93F (20-34C)
  • Wattage: 50-watt; Heater Length: 9"; Tank Capacity: 13gal; Voltage: 110-120v 60Hz
  • Set desired aquarium temperature & on/off indicator light confirms operation
  • Fully submersible quartz heater for reliable aquarium performance

Fully submersible quartz heater for reliable aquarium performance Fast heating and accurate heating temperature range is 68-93f (20-34c) Set desired aquarium temperature & on/off indicator light confirms operation Wattage: 50-watt; heater length: 9"; tank capacity: 13gal; voltage: 110-120v 60hz

3
9.6
SCORE
AQQA Aquarium Heater, 100W 200W 300W Quartz Glass Submersible Heater with LED Temperature Display and External Temperature Controller for Freshwater and Saltwater (800W for 80-220 Gallon Tank)

AQQA Aquarium Heater

100W 200W 300W Quartz Glass Submersible Heater with LED Temperature Display and External Temperature Controller for Freshwater and Saltwater (800W for 80-220 Gallon Tank)

by AQQA
What We like

INTELLIGENT AUTOMATIC HEATING: Automatic constant temperature function, design with External Temperature Controller, Temperature Range is 68-9320 C-34C, hold down the "+""-" set button at the same time for 5 seconds, switch easily from Celsius to Fahrenheit. It will restart to heating when the water temp is 1(1 C ) off the set temp. If power is shut off, the heater will keep the temperature settings until it powers on again

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Product Features

  • EASY INSTALLATION: Easy and quick installation, submersible fish tank heater, vertical or horizontal placement using attached adjustable hanging rack and 2 suction cups. NOTE: Please make sure that the heater is completely submerged in the water before turning on the power, and install it near the water flowing area to prevent uneven heating
  • DUAL TEMP DISPLAYS: LED display on the middle of the controller front side, Current Temp and Set Temp. If your heater is working properly, the red light will be constant on. When the temperature is reached 93(34), it will stop work, the blue light will be constant on. When the heater exposed to air and is not fully submerged, then display E1 fault
  • SAFE& DURABLE: Made of heat-resistant quartz glass and PC plastic cover, double seal material, providing explosion-proof, shatterproof, IP68 waterproof, much safer for human and your lovely fishes, your pets will no longer fear the winter

Safe& durable: made of heat-resistant quartz glass and pc plastic cover, double seal material, providing explosion-proof, shatterproof, ip68 waterproof, much safer for human and your lovely fishes, your pets will no longer fear the winter Easy installation: easy and quick installation, submersible fish tank heater, vertical or horizontal placement using attached adjustable hanging rack and 2 suction cups. note: please make sure that the heater is completely submerged in the water before turning on the power, and install it near the water flowing area to prevent uneven heating Dual temp displays: led display on the middle of the controller front side, current temp and set temp. if your heater is working properly, the red light will be constant on. when the temperature is reached 93(34), it will stop work, the blue light will be constant on. when the heater exposed to air and is not fully submerged, then display e1 fault

4
9.5
SCORE
hygger 50W Mini Inline Quartz Glass Aquarium Heater with External Controller, Adjustable Submersible Betta Fish Tank Thermostat for 5-15 Gallon

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

  • 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
  • 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
  • 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

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 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

5
9.5
SCORE
Hydor 150W Submersible Glass Aquarium Heater - Original Theo

Hydor 150W Submersible Glass Aquarium Heater

Original Theo

by Hydor USA, Inc.
What We like

No damage in case of running dry

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Product Features

  • Shock resistant
  • Graduated scale for precise maintenance of set temperature
  • Position vertical, horizontal and completely submerged
  • High resistance - the first shatter proof heater

Graduated scale for precise maintenance of set temperature Position vertical, horizontal and completely submerged High resistance - the first shatter proof heater Shock resistant

6
9.5
SCORE
CNZ EH-300W 300W Aquarium Glass Submersible Heater, 2-Pack

CNZ EH-300W 300W Aquarium Glass Submersible Heater

2-Pack

by CNZ
What We like

On/off indicator light allows simple, visual confirmation of heater operation

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Product Features

  • Wattage: 300-watt; Heater Length:14"; Tank Capacity: 75gal; Voltage: 110-120v 60Hz
  • Fast heating and accurate heating temperature range is 68-93F (20-34C)
  • Fully submersible glass heater for reliable aquarium performance
  • Set desired aquarium temperature & on/off indicator light confirms operation

Set desired aquarium temperature & on/off indicator light confirms operation Fast heating and accurate heating temperature range is 68-93f (20-34c) Wattage: 300-watt; heater length:14"; tank capacity: 75gal; voltage: 110-120v 60hz Fully submersible glass heater for reliable aquarium performance

7
9.3
SCORE
Fluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal., A784

Fluval M200 Submersible Heater

200-Watt Heater for Aquariums up to 65 Gal., A784

by Fluval
What We like

Easy to install with slim profile tube for easy placement

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Product Features

  • Computer-calibrated thermostat and easy-to-adjust temperature control dial
  • Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors
  • Shock resistant Borosilicate glass and high density ceramic heat sick

Shock resistant borosilicate glass and high density ceramic heat sick Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors Computer-calibrated thermostat and easy-to-adjust temperature control dial

8
9
SCORE
Hydor 400W Submersible Glass Aquarium Heater - Original Theo

Hydor 400W Submersible Glass Aquarium Heater

Original Theo

by Hydor USA, Inc.
What We like

Kindly refer user manual for assistance

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Product Features

  • High resistance - the first shatter proof heater
  • Shock resistant
  • Graduated scale for precise maintenance of set temperature
  • Position vertical, horizontal and completely submerged
  • No damage in case of running dry

High resistance - the first shatter proof heater Graduated scale for precise maintenance of set temperature No damage in case of running dry Shock resistant Position vertical, horizontal and completely submerged

9
9
SCORE
Aquatop GH50 Aquarium Submersible Glass Heater, 50-Watt

Aquatop GH50 Aquarium Submersible Glass Heater

50-Watt

by Aquatop, Inc.
What We like

Easy to use temperature setting

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Product Features

  • Voltage/freq: 110-120volt/60hertz
  • Fully submersible
  • Tank capacity: up to 13-gallon
  • Power: 50-watt

Power: 50-watt Voltage/freq: 110-120volt/60hertz Fully submersible Tank capacity: up to 13-gallon

10
9
SCORE
ViaAqua 300-Watt Quartz Glass Submersible Heater with Aquarium Thermometer with Suction Cup

ViaAqua 300-Watt Quartz Glass Submersible Heater with Aquarium Thermometer with Suction Cup

by Commodity Axis
What We like

Easy-to-read floating thermometer with suction cups

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Product Features

  • Fully-submerisble
  • Visible temperature setting
  • For use in fresh or saltwater aquariums
  • High quality quartz glass

Visible temperature setting High quality quartz glass For use in fresh or saltwater aquariums Fully-submerisble

11
9
SCORE
FREESEA 100W Mini Aquarium Fish Tank Heater with LED Temperature Display for Betta Fish, Frogs, Newts & Turtles

FREESEA 100W Mini Aquarium Fish Tank Heater with LED Temperature Display for Betta Fish

Frogs, Newts & Turtles

by FREESEA
What We like

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

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Product Features

  • Note:this heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.
  • 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.
  • Temperature range: 59F~94F, display Fahrenheit F, this heater is designed for10~20 gallons tank.

temperature range: 59f~94f, display fahrenheit f, this heater is designed for10~20 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.

12
9
SCORE
HITOP 25W 50W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (50W)

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

  • 50W aquarium heater, length 7.8-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 20 Gallons.
  • 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.
  • 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. 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. bonus a stick-on thermometer, no need to buy another thermometer, 24-hour professional after-sales service. 50w aquarium heater, length 7.8-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 20 gallons.

13
8.9
SCORE
Aquarium Heater, Submersible Fish Tank Heater 500W with Titanium Tube Thermostat System LED Digital Play and Remote Controller for 70-80 Gallon Tank

SeaELF Aquarium Heater

Submersible Fish Tank Heater 500W with Titanium Tube Thermostat System LED Digital Play and Remote Controller for 70-80 Gallon Tank

by SeaELF
What We like

🐠 Remote Controller & LCD Display 🐠: Update design with remote controller and LCD display , easy to setting and adjusting the aquarium heaters temperature by remote controller and easy know the tanks temperature by the LCD display, no need to buy extra temperature and wet your hands to setting the temperature again. (the remote is non waterproof, please keep it away from water).

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Product Features

  • 🐠 Premium Titanium Alloy Material & pinpoint probe 🐠: The seaELF aquarium heater made by premium titanium alloy, shatterproof, anti explosion, anti cracking and anti-corrosion than quartz glass aquarium heater and stainless steel tank heater, good for fresh water and sea water. The precise sensing probe on the top of heater for pinpoint temperature and double seal design to ensure safe operation. The heating tube with CE, RoHS, FC approved and the plug with UL approved.
  • 🐠 Intelligent Overheating Protection & Lack-of Water Protection 🐠: With double sensing probe on the top, it will accurate detect the temperature and water, once overheating or the water cant cover the top of this aquarium heater, it will automatic power-off, prevent electric shock & burns and keep you and your fish safe. (E2,E8 display are mean overheating, please increase the water circulation when it happens)
  • 🐠 Intelligent Thermostat Heating System 🐠This aquarium heater made with intelligent thermostat heating system, it will heating automatically once the water temperature is less than the setting temperature and stop heating once it reached the setting temperature. Keep the aquarium water in a same temperature environment to protect fishes, amphibians, turtles and so on.(Please install it near a strong water flow).

🐠 intelligent thermostat heating system 🐠this aquarium heater made with intelligent thermostat heating system, it will heating automatically once the water temperature is less than the setting temperature and stop heating once it reached the setting temperature. keep the aquarium water in a same temperature environment to protect fishes, amphibians, turtles and so on.(please install it near a strong water flow). 🐠 premium titanium alloy material & pinpoint probe 🐠: the SeaELF aquarium heater made by premium titanium alloy, shatterproof, anti explosion, anti cracking and anti-corrosion than quartz glass aquarium heater and stainless steel tank heater, good for fresh water and sea water. the precise sensing probe on the top of heater for pinpoint temperature and double seal design to ensure safe operation. the heating tube with ce, rohs, fc approved and the plug with ul approved. 🐠 intelligent overheating protection & lack-of water protection 🐠: with double sensing probe on the top, it will accurate detect the temperature and water, once overheating or the water cant cover the top of this aquarium heater, it will automatic power-off, prevent electric shock & burns and keep you and your fish safe. (e2,e8 display are mean overheating, please increase the water circulation when it happens)

14
8.8
SCORE
Marina Submersible Aquarium Heater 200 Watt

Marina Submersible Aquarium Heater 200 Watt

by Marina
What We like

Includes bracket with suction cups for easy, secure installation

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Product Features

  • Submersible heater for fresh or saltwater aquariums or reservoirs
  • Length: 10.6 Inch
  • Impact-resistant glass design; Water proof sealing
  • Easy to read temperature settings

Impact-resistant glass design; water proof sealing Easy to read temperature settings Length: 10.6 inch Submersible heater for fresh or saltwater aquariums or reservoirs

15
8.8
SCORE
VIVOSUN Submersible Aquarium Heater 50W Mini Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

VIVOSUN Submersible Aquarium Heater 50W Mini Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

by VIVOSUN
What We like

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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Product Features

  • THERMOSTAT HEATING SYSTEM: The VIVOSUN aquarium heater can control water temperature up to your desired temp value and will automatically control the water temp as needed; Your fish, turtles, frogs, or other little pets will spend a warm winter with this aquarium heater
  • MINIATURIZED WITH GREAT EFFECT: With a size of 12.5 (H) x 6.5 (W) this aquarium heater is compact and wont take up much space and is easy to hide; Whether your tank is 3 gallons or 60 gallons, youll find a use for VIVOSUNs aquarium heater
  • LOW WATER LEVEL HEATING: This product is 1.2 thick, which means it can operate in water levels of the same height; Its perfect for 3 to 5 gallon tanks, but also works with much bigger aquariums; Be sure to match the power to the aquarium dimensions

Miniaturized with great effect: with a size of 12.5 (h) x 6.5 (w) this aquarium heater is compact and wont take up much space and is easy to hide; whether your tank is 3 gallons or 60 gallons, youll find a use for VIVOSUNs aquarium heater Low water level heating: this product is 1.2 thick, which means it can operate in water levels of the same height; its perfect for 3 to 5 gallon tanks, but also works with much bigger aquariums; be sure to match the power to the aquarium dimensions Thermostat heating system: the VIVOSUN aquarium heater can control water temperature up to your desired temp value and will automatically control the water temp as needed; your fish, turtles, frogs, or other little pets will spend a warm winter with this aquarium heater

16
8.7
SCORE
HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater, Thermostat for Turtle Tank

HITOP 50W 100W 300W Adjustable Aquarium Heater

Submersible Fish Tank Heater, Thermostat for Turtle Tank

by Haisen
What We like

[Accessories]: An extra stick-on thermometer, and an extra suction cup providing for spare. Quick after-sales reply within 1-8 hours to answer your doubts.

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Product Features

  • [Thickened glass]: 2mm thickened quartz glass, 33% thicker than normal aquarium heaters, much safer for both human and animals.
  • [Dimension]: 300W adopt 10-slot multi-branched heating wire ceramic frame, better heat dissipation, Suitable for 30-60 gallant fish tank 11 x 1 x 1 inch, saving more space for your fish.
  • [Over-Heat Protection]: After set the temp you want, automatic switch device and temperature detection system, water heater will turn off automatically when its temp reaches your pre-set, also will turn on when lower than your set, relieved and simple operation.
  • [Accurate Temperature Control]: Adjustable heater from 61F to 90F (16C - 32C). A good temperature range for most fishes is 76F to 80F (25- 27C). An additional stick-on thermometer as a bonus to detect water temp at any time.

[thickened glass]: 2mm thickened quartz glass, 33% thicker than normal aquarium heaters, much safer for both human and animals. [over-heat protection]: after set the temp you want, automatic switch device and temperature detection system, water heater will turn off automatically when its temp reaches your pre-set, also will turn on when lower than your set, relieved and simple operation. [dimension]: 300w adopt 10-slot multi-branched heating wire ceramic frame, better heat dissipation, suitable for 30-60 gallant fish tank 11 x 1 x 1 inch, saving more space for your fish. [accurate temperature control]: adjustable heater from 61f to 90f (16c - 32c). a good temperature range for most fishes is 76f to 80f (25- 27c). an additional stick-on thermometer as a bonus to detect water temp at any time.

17
8.5
SCORE
ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

by Commodity Axis
What We like

For use in fresh or saltwater aquariums

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Product Features

  • Visible temperature setting
  • Fully-submerisble
  • High quality quartz glass

Visible temperature setting Fully-submerisble High quality quartz glass

18
8.5
SCORE
FREESEA 100 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer

FREESEA 100 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer

by FREESEA
What We like

Explosion Proof:Note: 1. Aquarium heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 2. Heater rod is suitable for people over 16 years of age. Children or minors should be under adult guidance or supervision. Thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.

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Product Features

  • Intelligent temperature controlAutomatic 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. Furthermore, Automatic safety shut-off feature, and overheating protection.
  • 100 Watt Heater: This Aquarium heater is suitable for 15 to 25 gallons aquariums, Length - 13.5 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
  • Temperature range: 63F~95F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.

Temperature range: 63f~95f , it is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time. 100 watt heater: this aquarium heater is suitable for 15 to 25 gallons aquariums, length - 13.5 inch,voltage 110-120v, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart. Intelligent temperature controlautomatic 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. furthermore, automatic safety shut-off feature, and overheating protection.

19
8.4
SCORE
ViaAqua 50-Watt Quartz Glass Submersible Heater with Built-In Thermostat

ViaAqua 50-Watt Quartz Glass Submersible Heater with Built-In Thermostat

by Commodity Axis
What We like

For use in fresh or saltwater aquariums

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Product Features

  • Visible temperature setting
  • Fully-submersible
  • High quality quartz glass

Visible temperature setting Fully-submersible High quality quartz glass

20
8.2
SCORE
ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat

ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat

by Commodity Axis
What We like

For use in fresh or saltwater aquariums

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Product Features

  • Fully-submerisble
  • High quality quartz glass
  • Visible temperature setting

Fully-submerisble High quality quartz glass Visible temperature setting

21
8.2
SCORE
Aqueon Adjustable PRO Aquarium Heater 100 Watts

Aqueon Adjustable PRO Aquarium Heater 100 Watts

by Central Garden & Pet
What We like

LED light is always on: red when heating, green when not heating

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Product Features

  • Adjustable heat setting 68 to 88F, Electronic Thermostat accurate to +/- 1
  • Shatterproof and nearly indestructible
  • Fully submersible; Auto Shut-Off when over-heats, resets when it cools down

Shatterproof and nearly indestructible Fully submersible; auto shut-off when over-heats, resets when it cools down Adjustable heat setting 68 to 88f, electronic thermostat accurate to +/- 1

22
7.4
SCORE
HITOP Adjustable Submersible Aquarium Fish Tank Heater, 50W 100W 200W 300W 500W for Fish Tank (200W)

HITOP Adjustable Submersible Aquarium Fish Tank Heater

50W 100W 200W 300W 500W for Fish Tank (200W)

by Haisen
What We like

[Dimension]: 11.4x2.2x1.2 in, large fish tank heater for aquarium, quick after-sales reply within 1-8 hours to answer your doubts or serve you.

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Product Features

  • [Over-Heat Protection]: After set the temp you want, due to the automatic switch device and temperature detection system, this fish heater will turn off automatically when its temp reaches your pre-set temp, also will turn on automatically when lower than your set, relieved and simple operation.
  • [Non-Glass]: Made of PTC element, an oxide ceramic, won't get fired, or broken like glass aquarium heaters, has longer service life and much safer than normal aquarium heaters.
  • [Accurate Temperature Control]: Adjustable submersible heater from 61F to 90F (16C - 32C). A good temperature range for most fishes is 76F to 80F (25- 27C). An additional stick-on thermometer as a bonus to detect water temp at any time.
  • [Wild Uses]: Hitop 200W aquarium heater is suitable for 50~100 gallon aquarium, 200 watt heater for large fish tank , with the protective cover, also can be used as100 gallon turtle tank heater, but must be fully submersible. Both for freshwater and saltwater.

[wild uses]: hitop 200w aquarium heater is suitable for 50~100 gallon aquarium, 200 watt heater for large fish tank , with the protective cover, also can be used as100 gallon turtle tank heater, but must be fully submersible. both for freshwater and saltwater. [accurate temperature control]: adjustable submersible heater from 61f to 90f (16c - 32c). a good temperature range for most fishes is 76f to 80f (25- 27c). an additional stick-on thermometer as a bonus to detect water temp at any time. [over-heat protection]: after set the temp you want, due to the automatic switch device and temperature detection system, this fish heater will turn off automatically when its temp reaches your pre-set temp, also will turn on automatically when lower than your set, relieved and simple operation. [non-glass]: made of ptc element, an oxide ceramic, won't get fired, or broken like glass aquarium heaters, has longer service life and much safer than normal aquarium heaters.

23
7.1
SCORE
Aqueon 100528588 Glass Adjustable Heater,Black , 200W

Aqueon 100528588 Glass Adjustable Heater

Black, 200W

by Central Garden & Pet
What We like

Power indicator light turns on when aquarium water is being heated

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Product Features

  • Fully submersible, quartz glass shatter-resistant construction
  • Precise temperature setting to 1-degree F (68-88 degrees F)
  • UL Approved, Automatic safety shut off and overheat protection
  • Recommended for aquariums up to 75 Gallons

Fully submersible, quartz glass shatter-resistant construction Ul approved, automatic safety shut off and overheat protection Recommended for aquariums up to 75 gallons Precise temperature setting to 1-degree f (68-88 degrees f)

24
7
SCORE
MQ Titanium Alloy 300W Aquarium Heater for Salt and Fresh Water, Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 50-60 Gallon

MQ Titanium Alloy 300W Aquarium Heater for Salt and Fresh Water

Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 50-60 Gallon

by MQ
What We like

Durable Titanium Tube - This aquarium heater is made of premium Titanium Alloy, double seal material, advanced design to ensure safe operation. It has explosion-proof function while being also shatterproof and waterproof.

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Product Features

  • Wide Temperature Range - The temperature of the heater can be adjusted between 20-34, 68-93F. It is suitable for many kinds of aquariums, fishes and amphibious turtles.
  • It will stop heating when the water temp reaches to the set temp, restart heating when the water temp is 1 less than the set temp. The heater is working when the indicator light is red.
  • Intelligent Temperature Control - It can ensure the temperature constant at the set point as it can adjust heating power automatically if there is any water temperature variation. So that it can avoid temperature mutation and protect fishes.
  • Easy Viewing and Safe Adjusting - It is easy and safe to adjust temperature by the external controller and the temperature will be shown on the LED screen of the heater.

Wide temperature range - the temperature of the heater can be adjusted between 20-34, 68-93f. it is suitable for many kinds of aquariums, fishes and amphibious turtles. Intelligent temperature control - it can ensure the temperature constant at the set point as it can adjust heating power automatically if there is any water temperature variation. so that it can avoid temperature mutation and protect fishes. Easy viewing and safe adjusting - it is easy and safe to adjust temperature by the external controller and the temperature will be shown on the led screen of the heater. It will stop heating when the water temp reaches to the set temp, restart heating when the water temp is 1 less than the set temp. the heater is working when the indicator light is red.

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VIVOSUN 200W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

VIVOSUN 200W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

by VIVOSUN
What We like

EASY TO SETUP: 200W submersible heater is suitable for 21.1 to 39.6 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
  • 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

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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