25 Best Filters For Aquariums
for March 2021

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

1
9.9
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Tetra Whisper Filter Cartridges 4 Count, Extra Small, For aquarium Filtration (AQ-78052),white

Tetra Whisper Filter Cartridges 4 Count

Extra Small, For aquarium Filtration (AQ-78052), white

by Spectrum Brands Pet LLC
What We like

Age Range Description: All Life Stages

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Product Features

  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
  • USAGE Change every 2 weeks or sooner if there is reduced water flow
  • REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear removes odors and discoloration
  • CONVENIENT Replacement filter cartridges are fully assembled and ready to use

Usage change every 2 weeks or sooner if there is reduced water flow Catches debris dense dual-sided mesh filters debris and fish waste Replacement carbon filter keeps aquarium water crystal clear removes odors and discoloration Convenient replacement filter cartridges are fully assembled and ready to use

2
9.8
SCORE
Tetra Whisper Internal Filter 10 To 20 Gallons, For aquariums, In-Tank Filtration With Air Pump

Tetra Whisper Internal Filter 10 To 20 Gallons

For aquariums, In-Tank Filtration With Air Pump

by Tetra
What We like

CONVENIENT DESIGN Uses large easy to change Bio-Bag cartridges filter mounts inside aquarium making it possible to place tank flush against the wall

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Product Features

  • UNIVERSAL DESIGN Tetra Whisper 20i Internal Filter is an all-in-one air pump and water filter system
  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
  • AERATES WATER Air-driven design filters up to 125 GPH while oxygenating water
  • INTERNAL FILTER Mounts on the inside of your aquarium with clip (included)

Aerates water air-driven design filters up to 125 gph while oxygenating water Internal filter mounts on the inside of your aquarium with clip (included) Catches debris dense dual-sided mesh filters debris and fish waste Universal design Tetra whisper 20i internal filter is an all-in-one air pump and water filter system

3
9.8
SCORE
Tetra Whisper Bio-Bag Disposable Filter Cartridges 3 Count, For aquariums, Medium (26169)

Tetra Whisper Bio-Bag Disposable Filter Cartridges 3 Count

For aquariums, Medium (26169)

by Tetra
What We like

Easy to Assemble, Easy to Replace

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Product Features

  • Age Range Description: All Ranges
  • Please read all label information on delivery
  • FITS TETRA WHISPER WATER FILTERS Color coded to make it simple to remember which replacement cartridge size to purchase
  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
  • Included Components: Whisper Assembled Bio-Bag Cartridge Medium (3 Pack)

Conveniently assembled and ready-to-use Usage change monthly or sooner if needed Like the unassembled, the-packages are color-coded, making it easier than ever to remember which size to purchase Replacement carbon filter keeps aquarium water crystal clear removes odors and discoloration Included components: whisper assembled bio-bag cartridge medium (3 pack) Fits Tetra whisper water filters color coded to make it simple to remember which replacement cartridge size to purchase Catches debris dense dual-sided mesh filters debris and fish waste Please read all label information on delivery Age range description: all ranges Convenient replacement filter cartridges are fully assembled and ready to use

4
9.8
SCORE
Tetra Whisper Bio-Bag Disposable Filter Cartridges 12 Count, For aquariums, Large, Unassembled

Tetra Whisper Bio-Bag Disposable Filter Cartridges 12 Count

For aquariums, Large, Unassembled

by Tetra
What We like

CONVENIENT Easy to assemble and easy to replace

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Product Features

  • FITS TETRA WHISPER WATER FILTERS Color coded to make it simple to remember which replacement cartridge size to purchase
  • UNASSEMBLED REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear removes odors and discoloration
  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
  • USAGE Change monthly or sooner if needed

Fits Tetra whisper water filters color coded to make it simple to remember which replacement cartridge size to purchase Usage change monthly or sooner if needed Unassembled replacement carbon filter keeps aquarium water crystal clear removes odors and discoloration Catches debris dense dual-sided mesh filters debris and fish waste

5
9.8
SCORE
Tetra Carbon Filters, For Aquariums, Fits Tetra Whisper EX Filters, Large, 4-Count

Tetra Carbon Filters

For Aquariums, Fits Tetra Whisper EX Filters, Large, 4-Count

by Tetra
What We like

Easy to use

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Product Features

  • Tetra Carbon filters trap even the smallest particles
  • Medium fits EX20Large fits EX30, EX45, and EX70

Tetra carbon filters trap even the smallest particles Medium fits ex20large fits ex30, ex45, and ex70

6
9.5
SCORE
Marineland Emperor Power Filter Cartridge Rite-Size E, 4 Count, Replacement Cartridge For Aquarium Filtration

Marineland Emperor Power Filter Cartridge Rite-Size E

4 Count, Replacement Cartridge For Aquarium Filtration

by Marineland
What We like

age_range_description: all ranges

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7
9.4
SCORE
AQQA Aquarium Electric Power Sponge Filter,3W/5W Silence Submersible Foam Filter,Sponges Bio Ceramic Media Balls Double Filter for Saltwater Freshwater Fish Tank

AQQA Aquarium Electric Power Sponge Filter

3W/5W Silence Submersible Foam Filter, Sponges Bio Ceramic Media Balls Double Filter for Saltwater Freshwater Fish Tank

by AQQA
What We like

Upgrade Electric Power FilterFilter with powerful motor,no need air pump, Work more efficiently and energy saving.Internal Submersible is very quiet,Noise is less than 30dbSelected high-quality motors, longer service life.

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Product Features

  • 4 Sponge 1 bag of Bio Ceramic Media Balls 2 Suction CupComes with 2 spare sponges, put them in the filter box, please take out the spare sponges before use.The filter box can be filled with bio ceramic media balls, or nothing, or other filter media.It can be sucked tightly around the fish tank or the bottom without sand.
  • Suitable For Saltwater or FreshwaterBio ceramic media balls with a layer of protective powder,it was normal.Before use, please clean the sponge and ball with the water in the fish tank before putting it in the fish tank.
  • Double FilterPhysical Filtration+Biochemical FiltrationThe high-quality biochemical cotton adopts a ribbing design to increase the surface area and filter out automatically absorb feces, debris and residues in water.Bio Ceramic Media Balls improve the filtering effect, can quickly purify the water quality.Ceramic balls can also be replaced by other filter materials.
  • Water Outlet Can be Adjusted 360and StretchThe retractable water outlet can be adapted to fish tanks of various depths, and the water outlet can be submerged in the water or out of the water.Filtration can not only purify water quality and increase water circulation, but also increase the oxygen content in the water.

Suitable for saltwater or freshwaterbio ceramic media balls with a layer of protective powder,it was normal.before use, please clean the sponge and ball with the water in the fish tank before putting it in the fish tank. Water outlet can be adjusted 360and stretchthe retractable water outlet can be adapted to fish tanks of various depths, and the water outlet can be submerged in the water or out of the water.filtration can not only purify water quality and increase water circulation, but also increase the oxygen content in the water. Double filterphysical filtration+biochemical filtrationthe high-quality biochemical cotton adopts a ribbing design to increase the surface area and filter out automatically absorb feces, debris and residues in water.bio ceramic media balls improve the filtering effect, can quickly purify the water quality.ceramic balls can also be replaced by other filter materials. 4 sponge 1 bag of bio ceramic media balls 2 suction cupcomes with 2 spare sponges, put them in the filter box, please take out the spare sponges before use.the filter box can be filled with bio ceramic media balls, or nothing, or other filter media.it can be sucked tightly around the fish tank or the bottom without sand.

8
9.3
SCORE
Top Fin Retreat RF-S Filter Cartridges (Small) Refill for Desktop Aquariums with Small Retreat Filters - 8.1in x 1.9in (6 Count)

Top Fin Retreat RF-S Filter Cartridges (Small) Refill for Desktop Aquariums with Small Retreat Filters

8.1in x 1.9in (6 Count)

by Top Fin
What We like

6 MONTH SUPPLY

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Product Features

  • Color: White
  • Intended For: Top fin desktop aquariums with small filters
  • Product Dimensions: 8.1 in L x 1.9 in W (20.5 x 4.8 cm)
  • Coconut shell activated carbon to help absorb undesirable odors, pigments and chlorine

Intended for: Top Fin desktop aquariums with small filters Product dimensions: 8.1 in l x 1.9 in w (20.5 x 4.8 cm) Coconut shell activated carbon to help absorb undesirable odors, pigments and chlorine Color: white

9
9.2
SCORE
XpertMatic DB-368F 3 Stages 475 GPH Aquarium Filter for Up to 180 Gallon Fish Tank, Submersible Internal Fish Tank Filter with Water Pump, Power Filter for Fish Tank, Aquarium, Pond

XpertMatic DB-368F 3 Stages 475 GPH Aquarium Filter for Up to 180 Gallon Fish Tank

Submersible Internal Fish Tank Filter with Water Pump, Power Filter for Fish Tank, Aquarium, Pond

by XpertMatic
What We like

Easy to Set Up and Clean: The fully submersible filter with suction cups is easy to place inside your fish tank. The transparent filter box is visible that you will know when to clean or replace the filter cartridge.

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Product Features

  • Submersible Water Pump: You can lay down the filter at the bottom of the aquarium and use it as a water pump.
  • Leave The Water Crystal Clear: Adopts 3 stages filtration to ensure water clarity. Suitable for marine and freshwater aquariums.
  • Wide Application: Max Flow Rate: 475GPH(1800L/H). Max Lift Height: 4.92ft. Fits for aquariums, fish tanks, and fountains up to 264 gallons no more than 4.92ft height.
  • Ultra Quiet: XpertMatic aquarium internal filter could supply oxygen and create an aquarium water cycle. It provides a healthy living environment for your lovely pets. eg, fish and turtle. Less than 35dB, you can use it in your bedroom aquariums.

Submersible water pump: you can lay down the filter at the bottom of the aquarium and use it as a water pump. Wide application: max flow rate: 475gph(1800l/h). max lift height: 4.92ft. fits for aquariums, fish tanks, and fountains up to 264 gallons no more than 4.92ft height. Ultra quiet: XpertMatic aquarium internal filter could supply oxygen and create an aquarium water cycle. it provides a healthy living environment for your lovely pets. eg, fish and turtle. less than 35db, you can use it in your bedroom aquariums. Leave the water crystal clear: adopts 3 stages filtration to ensure water clarity. suitable for marine and freshwater aquariums.

10
9.2
SCORE
Tetra Whisper EX 70 Filter For 45 To 70 Gallon aquariums, Silent Multi-Stage Filtration

Tetra Whisper EX 70 Filter For 45 To 70 Gallon aquariums

Silent Multi-Stage Filtration

by Tetra
What We like

NO-MESS FILTER CARTRIDGE CHANGES Design minimizes dripping to make cartridge changes easy

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Product Features

  • SIZE This filter fits 45 to 70 gallon aquariums
  • FAST SETUP Sets up easily right out of the box no priming required
  • CONTINUOUS FLOW Moves water continuously to prevent debris buildup
  • WHISPER QUIET The Tetra Whisper EX Power Filter provides silent multi-stage filtration for clear clean water

Continuous flow moves water continuously to prevent debris buildup Whisper quiet the Tetra whisper ex power filter provides silent multi-stage filtration for clear clean water Size this filter fits 45 to 70 gallon aquariums Fast setup sets up easily right out of the box no priming required

11
9.1
SCORE
Penn Plax Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks – Up To 100 Gallons, Filters 265 GPH,Blue

Penn-Plax Penn Plax Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks – Up To 100 Gallons

Filters 265 GPH, Blue

by Monster Pets
What We like

STATE OF THE ART FEATURES OF THE CASCADE 1000: flow valves that rotate 360 degrees for easy maneuvering in even the tightest aquarium cabinets large capacity media baskets allow aquarists to customize to their media needs push button primer allows for a quick and easy prime of the filter includes a spray bar, tubing, directional spout for customization, and filter medium.

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Product Features

  • FILTER MEDIA OPTIONS BY CASCADE AVAILABLE ON AMAZON, SOLD SEPARATELY: see below for details, sold separately is media such as: bio-floss, bio-sponge, bio-rings, filt-a-pack pro-z, and filt-a-pack pro-carb-z.
  • CASCADE CANISTER FILTER FOR FRESHWATER OR MARINE ENVIRONMENTS: the Cascade 1000 (CCF3UL) has 3 media baskets, works at 265 GPH, and is recommended for Aquariums up to 100 gallons. It measures 11.5 x 17 x 10 inches.
  • USE ANY COMBINATION OF MEDIA: floss pad for removing particulate matter and a course sponge that provides abundant surface for promoting bacterial growth (to remove ammonia and nitrites) included free with purchase
  • SEE BELOW FOR DIAGRAM, THE CASCADE 1000 INCLUDES: Flow rate control cut-off valves two independent directional 360 degree rotating valve taps swimming pool style hose clamps quick, easy, push button self-primer extra-large capacity stackable filter medium containers with lift-up handles floss pad and coarse sponge included, free with each canister filter easy lift alignment clamps that release vacuum suction sturdy tip-proof base

Filter media options by cascade available on amazon, sold separately: see below for details, sold separately is media such as: bio-floss, bio-sponge, bio-rings, filt-a-pack pro-z, and filt-a-pack pro-carb-z. See below for diagram, the cascade 1000 includes: flow rate control cut-off valves two independent directional 360 degree rotating valve taps swimming pool style hose clamps quick, easy, push button self-primer extra-large capacity stackable filter medium containers with lift-up handles floss pad and coarse sponge included, free with each canister filter easy lift alignment clamps that release vacuum suction sturdy tip-proof base Cascade canister filter for freshwater or marine environments: the cascade 1000 (ccf3ul) has 3 media baskets, works at 265 gph, and is recommended for aquariums up to 100 gallons. it measures 11.5 x 17 x 10 inches. Use any combination of media: floss pad for removing particulate matter and a course sponge that provides abundant surface for promoting bacterial growth (to remove ammonia and nitrites) included free with purchase

12
9.1
SCORE
Driew Filter Media Bags, 10pcs Aquarium Media Bags Mesh Bags for Aquarium Filter Bio Filter Media Bags

Driew Filter Media Bags

10pcs Aquarium Media Bags Mesh Bags for Aquarium Filter Bio Filter Media Bags

by Driew
What We like

USER-FRIENDLY: Designed with zipper, prevent small media from entering your aquarium system efficiently

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Product Features

  • APPLICATION: Ideal mesh bags for aquarium filter
  • PREMIUM MATERIAL: Driew filter media bags are made from high quality nylon, durable and anti-corrosion
  • SPECIFICATION: 6 x 7.8 inches / 15 x 10 cm; each package contains 10 pcs mesh bags

Application: ideal mesh bags for aquarium filter Specification: 6 x 7.8 inches / 15 x 10 cm; each package contains 10 pcs mesh bags Premium material: Driew filter media bags are made from high quality nylon, durable and anti-corrosion

13
8.9
SCORE
Polar Aurora Free Media 265GPH / 370GPH / 525GPH External Aquarium Filter with Builtin Pump Kit Canister (525GPH)

Polar Aurora Free Media 265GPH

370GPH, 525GPH External Aquarium Filter with Builtin Pump Kit Canister (525GPH)

by Polar Aurora
What We like

The four flexible media trays allow you to add other filtration media such as SunSun's activated carbons, ceramic rings or bio-balls to achieve excellent mechanical, chemical, and biological filtration.

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Product Features

  • 4 media trays capable of handling your choice of filtration media; Comes with an adjustable spray bar. This is a helpful feature if you want to adjust the output flow from the filter
  • Built in 9 Watt Light for controlling algae spores/bacteria and promoting clear water
  • Good for up to 200 gallon fish tanks.Maximum flow rate of 525GPH from built in pump
  • Convenient self-priming pump that eliminates the need for manual siphoning; Single valve disconnect & priming pump ease routine maintenance

Good for up to 200 gallon fish tanks.maximum flow rate of 525gph from built in pump 4 media trays capable of handling your choice of filtration media; comes with an adjustable spray bar. this is a helpful feature if you want to adjust the output flow from the filter Convenient self-priming pump that eliminates the need for manual siphoning; single valve disconnect & priming pump ease routine maintenance Built in 9 watt light for controlling algae spores/bacteria and promoting clear water

14
8.8
SCORE
Polar Aurora 3-Stage External Aquarium Filter 265gph with Builtin Pump Kit Canister

Polar Aurora 3-Stage External Aquarium Filter 265gph with Builtin Pump Kit Canister

by Polar Aurora
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15
8.7
SCORE
Aqua-Tech EZ-Change Aquarium Filter Cartridge ( Pack Of 6 )

Aqua-Tech EZ-Change Aquarium Filter Cartridge ( Pack Of 6 )

by Aqua-Tech
What We like

Contains AQUA-Tech Premium Activated Carbon

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Product Features

  • For best results, change every 2-4 weeks
  • Changes in seconds just shake and rinse
  • EZ-Change #3 Filter Cartridge fits AQUA-Tech 20-40 and 30-60 Power Filters
  • No messy assembly required

No messy assembly required Ez-change #3 filter cartridge fits Aqua-Tech 20-40 and 30-60 power filters For best results, change every 2-4 weeks Changes in seconds just shake and rinse

16
8.7
SCORE
Tetra Whisper Power Filter 10 Gallons, Quiet 3-Stage aquarium Filtration (26316)

Tetra Whisper Power Filter 10 Gallons

Quiet 3-Stage aquarium Filtration (26316)

by Tetra
What We like

INNOVATIVE CLEANING POWER Integrated Stay Clean technology reduces buildup on glass and binds small dirt particles to make them easier to filter

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Product Features

  • CARTRIDGE REFILLS Change cartridges monthly uses medium-sized Tetra Whisper Bio-Bag Cartridges (refills sold separately)
  • Included Components: Whisper PF10 Aquarium Filter (5-10 Gal)
  • ABSORBS ODORS Ultra-Activated carbon removes both odor and water discoloration
  • Age Range Description: all ranges
  • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste

Included components: whisper pf10 aquarium filter (5-10 gal) Absorbs odors ultra-activated carbon removes both odor and water discoloration Quiet & reliable the Tetra whisper power filter uses 3-stage filtration to create clear clean water pf 10 treats aquariums up to 10 gallons Age range description: all ranges Cartridge refills change cartridges monthly uses medium-sized Tetra whisper bio-bag cartridges (refills sold separately) Catches debris dense dual-sided mesh filters debris and fish waste

17
8.5
SCORE
Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System Cleans Up To 50 Gallon Tank

Penn-Plax Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System Cleans Up To 50 Gallon Tank

by Monster Pets
What We like

REVOLUTIONARY BIO-FALLS QUAD-FILTRATION SYSTEM: provides efficient filtration with sponges that optimize colonization of ammonia and nitrite removing bacteria all while providing maximum oxygenation.

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Product Features

  • INTERNAL SPONGE AND EXTERNAL BIO-FALLS: the external Bio-Falls wet/dry biological booster provides anaerobic bacteria for additional ammonia and nitrite removal while enhancing oxygen exchange for maximum water oxygenation. The polyfiber floss cartridge traps floating particulate matter.
  • ADJUSTABLE FLOW KNOB: allows you to reduce filtration during feeding times or as needed. Aquarium filter is recommended for both freshwater and saltwater applications. Self-leveling case keeps filter level on nearly all aquariums.
  • REMOVE HARMFUL CHEMICALS, TOXINS, AND ODORS: the included activated carbon cartridge removes discoloration and contaminants from your aquarium. Replacement cartridges are available, sold separately, here on amazon.
  • HANG-ON AQUARIUM FILTER WITH QUAD FILTRATION: this hang-on aquarium filter quietly delivers 200 GPH of crystal clear water for your freshwater aquarium or marine tank. Ideal for tanks from 35 to 55 gallons in size.

Adjustable flow knob: allows you to reduce filtration during feeding times or as needed. aquarium filter is recommended for both freshwater and saltwater applications. self-leveling case keeps filter level on nearly all aquariums. Internal sponge and external bio-falls: the external bio-falls wet/dry biological booster provides anaerobic bacteria for additional ammonia and nitrite removal while enhancing oxygen exchange for maximum water oxygenation. the polyfiber floss cartridge traps floating particulate matter. Hang-on aquarium filter with quad filtration: this hang-on aquarium filter quietly delivers 200 gph of crystal clear water for your freshwater aquarium or marine tank. ideal for tanks from 35 to 55 gallons in size. Remove harmful chemicals, toxins, and odors: the included activated carbon cartridge removes discoloration and contaminants from your aquarium. replacement cartridges are available, sold separately, here on amazon.

18
8.5
SCORE
Aquarium Filter Media Pad Cut to Fit Roll, 12

Koral Filters Aquarium Filter Media Pad Cut to Fit Roll

12" x 72" (6 ft)

by Koral Filters
What We like

Non-toxic - Safe and Durable

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Product Features

  • 12" wide 1" thick - Cut to fit media roll
  • Works with Fresh or Salt water
  • Optimum waterflow with cleaning efficiency
  • 100% Satisfaction Guranteed

Works with fresh or salt water 12" wide 1" thick - cut to fit media roll 100% satisfaction guranteed Optimum waterflow with cleaning efficiency

19
8.1
SCORE
Penn-Plax Cascade 600 Submersible Aquarium Filter Cleans Up to 50 Gallon Fish Tank with Physical, Chemical, and Biological Filtration, CIF3

Penn-Plax Cascade 600 Submersible Aquarium Filter Cleans Up to 50 Gallon Fish Tank with Physical

Chemical, and Biological Filtration, CIF3

by Monster Pets
What We like

Spray bar option allows you to distribute water evenly helping aerate your tank. Fish tank filter can be placed horizontally and is easily hidden.

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Product Features

  • Activated carbon cartridge removes harmful chemicals, toxins, odors, discoloration, and other contaminants for your aquarium.
  • Fully submersible aquarium filter quietly delivers 175 gallons per hour of crystal clear water for your fresh or marine aquarium from 20 to 50 gallons in size.
  • age range description: All Life Stages
  • Pump head with adjustable and directional water flow. Cascade internal filters provide better filtration; physical, chemical and biological while also aerating water.
  • Internal sponge optimizes colonization of beneficial aerobic bacteria. Large capacity aquarium filter cup allows you to choose your own filter medium.

Pump head with adjustable and directional water flow. cascade internal filters provide better filtration; physical, chemical and biological while also aerating water. Internal sponge optimizes colonization of beneficial aerobic bacteria. large capacity aquarium filter cup allows you to choose your own filter medium. Age range description: all life stages Fully submersible aquarium filter quietly delivers 175 gallons per hour of crystal clear water for your fresh or marine aquarium from 20 to 50 gallons in size. Activated carbon cartridge removes harmful chemicals, toxins, odors, discoloration, and other contaminants for your aquarium.

20
8
SCORE
Fluval U2 Underwater Filter

Fluval U2 Underwater Filter

by Fluval
What We like

Comes with 3-way flow control with adjustable output, 2 foam pads, 2 poly/carbon cartridges and 40 grams BioMax; Ideal for 12-30 gallon environments

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Product Features

  • Ideal supplemental or stand-alone filter, or for installations where external filtration is not possible
  • Silent and efficient
  • Ideal for fresh or saltwater aquariums. Wattage - 120V/60Hz 5W and 230-240V/50Hz 5W. Output - 105 US Gallon
  • Filters debris and provides optimal biological filtration

Ideal supplemental or stand-alone filter, or for installations where external filtration is not possible Ideal for fresh or saltwater aquariums. wattage - 120v/60hz 5w and 230-240v/50hz 5w. output - 105 us gallon Silent and efficient Filters debris and provides optimal biological filtration

21
8
SCORE
Marineland Rite-Size Cartridge C, 6-Pack

Marineland Rite-Size Cartridge C

6-Pack

by Marineland
What We like

EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless.

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Product Features

  • Chemically filtered through Black Diamond Premium Activated Carbon.
  • BIO-Wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth.
  • REPLACEMENT FILTER CARTRIDGE: Pack of 6 fits Marineland Penguin PRO Power Filters 275 and 375; also fits original Penguin Power Filters 200 and 350.

Replacement filter cartridge: pack of 6 fits Marineland penguin pro power filters 275 and 375; also fits original penguin power filters 200 and 350. Chemically filtered through black diamond premium activated carbon. Bio-wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth.

22
7.8
SCORE
AquaCity Corner Filter Aquarium Fish Tank Internal Air Driven Filter with Media XY-2008

Aquapapa AquaCity Corner Filter Aquarium Fish Tank Internal Air Driven Filter with Media XY-2008

by Aquacity
What We like

Black bio-sponge and ceramic rings with gravel provide biochemical filtration.

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Product Features

  • Supply the water with much needed oxygen, For tank size up to 5-10 Gallons
  • Top layer of white filter pad provides a mechanical filtration.
  • Multi-layer media, easy to move and clean.
  • Reduce noise from air pump and consume lowest wattage.

Supply the water with much needed oxygen, for tank size up to 5-10 gallons Top layer of white filter pad provides a mechanical filtration. Multi-layer media, easy to move and clean. Reduce noise from air pump and consume lowest wattage.

23
7.8
SCORE
MarineLand Penguin 100 Power Filter, 100 GPH (PF0100B),Black

MarineLand Penguin 100 Power Filter

100 GPH (PF0100B), Black

by Marineland
What We like

Convenient penguin rite size "a" cartridge comes ready to use with each filter

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Product Features

  • Bio-Wheel technology delivers a three stage mechanical, chemical, and biological aquarium filtration
  • Certified flow rate of 75 GPH (gallons per hour), perfect for aquariums up to 10 gallons
  • The penguin power filter requires virtually no set-up, making it perfect for any fish lover

Certified flow rate of 75 gph (gallons per hour), perfect for aquariums up to 10 gallons The penguin power filter requires virtually no set-up, making it perfect for any fish lover Bio-wheel technology delivers a three stage mechanical, chemical, and biological aquarium filtration

24
7.7
SCORE
Aqueon QuietFlow Filter Cartridge, Medium, 6-Pack

Aqueon QuietFlow Filter Cartridge

Medium, 6-Pack

by Central Garden & Pet
What We like

Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria

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Product Features

  • Installs in seconds: align cartridge bottom key slot for an accurate fit inside the Filter
  • Ready-to-use cartridge contains high quality activated carbon that keeps water clean, rinse before replacing
  • Fits Aqueon QuietFlow Filter: LED PRO Size 10 and E Internal 20 gallon
  • For optimal performance, change approximately every 4 to 6 weeks

Fits aqueon quietflow filter: led pro size 10 and e internal 20 gallon For optimal performance, change approximately every 4 to 6 weeks Ready-to-use cartridge contains high quality activated carbon that keeps water clean, rinse before replacing Installs in seconds: align cartridge bottom key slot for an accurate fit inside the filter

25
7.6
SCORE
Aqua-Flo 12

Aqua Flo Aqua-Flo 12" Pond & Aquarium Filter Media

72" (6 Feet) Long x 1" Thick (Green/White)

by Aqua-Flo Industries
What We like

Easy to cut with scissors to any size needed.

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Product Features

  • No chemicals used in production! Safe for all fresh or saltwater fish, tanks & ponds.
  • Proudly Made in the USA by an American Company
  • Over 30 years of proven customer satisfaction with our green filter product.

Over 30 years of proven customer satisfaction with our green filter product. Proudly made in the usa by an american company No chemicals used in production! safe for all fresh or saltwater fish, tanks & ponds.

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