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Best AQUARIUM FILTERS

At Aquarium Accessories Reviews, we take pride in our rigorous review process. Each product is handpicked based on market research, personally tested by our experienced team for functionality and durability, and evaluated for value for money. Alongside our hands-on experience, we also consider real user feedback. This meticulous approach ensures we provide honest, transparent, and comprehensive reviews to guide your aquarium accessory purchases.

We will continue to update this buyer's guide once a month or two.

The best AQUARIUM FILTERS in 2024 - Detailed Product Descriptions

1. AquaClear 50 Power Filter, Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

By Brand: AquaClear

AquaClear 50 Power Filter, Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

Aquarium filtration system that offers superior contact time with filter media and energy efficient pump lowers operating costs
Quick and easy installation; we recommend that you clean aquarium filter every 2 weeks for maximum operation and efficiency
Provides optimal mechanical; chemical; and biological filtration
Comes equipped with AquaClear Foam; Activated Carbon Filter and BioMax and Cycle Guard for superior water quality
Filtration volume is up to 7 times larger than comparable fish tank filters

2. Marineland Rite-Size Cartridge C, 6-Pack

By MarineLand Store

Marineland Rite-Size Cartridge C, 6-Pack

No Fabric
Made in US
REPLACEMENT FILTER CARTRIDGE: Pack of 6 fits Marineland Penguin PRO Power Filters 275 and 375; also fits original Penguin Power Filters 200 and 350.
EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless.
THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber.
Chemically filtered through Black Diamond Premium Activated Carbon.
BIO-Wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth.

3. Tetra Whisper In-Tank Filter 40i with BioScrubber - 20-40 gallon (25818), Black

By Tetra Store

Tetra Whisper In-Tank Filter 40i with BioScrubber - 20-40 gallon (25818), Black

UNIVERSAL DESIGN: Tetra Whisper 40i Internal Filter is an all-in-one air pump and water filter system.
INTERNAL FILTER: Mounts on the inside of your aquarium with clip (included).
CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
AERATES WATER: Air-driven design filters up to 170 GPH while oxygenating water.
CONVENIENT DESIGN: Uses large easy to change Bio-Bag cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall.

4. Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups

By Penn-Plax Store

Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups

QUIET & EFFICIENT: The Cascade 300 Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 300 Gallons per Hour (GPH) for tanks up to 100 Gallons in size. It’s great for Freshwater and Saltwater aquariums.
ACCOMMODATING: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. The lift tube extends between 8. 25” (min) and 12. 25” (max).
EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water.
REVOLUTIONARY: The Cascade 300 Power Hang-On Filter features a Bio-Sponge cartridge that optimizes colonization of anaerobic bacteria, and is independent from the first stage filter media. In addition, our Bio-Falls system enhances water oxygenation, and aids with removing ammonia and nitrate.
OVERALL MEASUREMENTS: 8. 25” (H) x 11. 25” (W) x 6. 25” (D)

5. Tetra Whisper Power Filter for Aquariums, 3 Filters in 1, Up to 40-Gallons

By Tetra Store

Tetra Whisper Power Filter for Aquariums, 3 Filters in 1, Up to 40-Gallons

QUIET & RELIABLE The Tetra Whisper Power Filter uses 3-stage filtration to create clear clean water – PF 40 treats aquariums up to 40 gallons
ABSORBS ODORS Ultra-Activated carbon removes both odor and water discoloration
CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
INNOVATIVE CLEANING POWER Integrated Stay Clean technology reduces buildup on glass and binds small dirt particles to make them easier to filter
CARTRIDGE REFILLS Change cartridges monthly uses large-sized Tetra Whisper Bio-Bag Cartridges (refills sold separately)

6. Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Ready To Use BLUE 3-Count

By Tetra Store

Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Ready To Use BLUE 3-Count

REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear – removes odors and discoloration
CATCHES DEBRIS: Dense dual-sided mesh filters debris and fish waste
FITS TETRA WHISPER WATER FILTERS: Color coded to make it simple to remember which replacement cartridge size to purchase
CONVENIENT: Replacement filter cartridges are fully assembled and ready to use
USAGE: Change monthly or sooner if needed
Conveniently Assembled and Ready-to-Use
Like the unassembled, the-Packages are color-coded, making it easier than ever to remember which size to purchase

7. Marineland Penguin Bio-Wheel Power Filter

By MarineLand Store

Marineland Penguin Bio-Wheel Power Filter

WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.
COMPATIBILITY: Use with Marineland Rite-Size Filter Cartridges (see individual filter for sizing recommendations).
FIVE SIZES: Available in 75 GPH, 100 GPH, 150 GPH, 200 GPH and 350 GPH sizes.
Age range description: All Life Stages

8. Aqueon QuietFlow 10 LED PRO Aquarium Fish Tank Power Filter For Up to 20 Gallon Aquariums

By Aqueon Store

Aqueon QuietFlow 10 LED PRO Aquarium Fish Tank Power Filter For Up to 20 Gallon Aquariums

LED indicator light flashes when water cannot pass through the cartridge, generally indicating it's time to change the cartridge
Self-priming filter pump will auto-start initially or restart if power is interrupted and restored
Provides mechanical, chemical, biological and optional, additional specialty pad filtration
High flow rates for optimal dissolved oxygen content to promote healthier, more active fish
Internal pump design helps dampen noise and eliminate leaks with self-priming feature
Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria
Fits fresh or saltwater aquarium size up to 20 gallons
Uses One Medium Aqueon Replacement Cartridge and Size 10 Specialty Filter Pads

9. Penn-Plax Cascade 600 Fully Submersible Internal Filter – Provides Physical, Biological, and Chemical Filtration for Aquariums and Turtle Tanks

By Penn-Plax Store

Penn-Plax Cascade 600 Fully Submersible Internal Filter – Provides Physical, Biological, and Chemical Filtration for Aquariums and Turtle Tanks

QUIET & EFFICIENT: The Cascade 600 Submersible Filter quietly delivers crystal clear water throughout the aquarium. This filter cycles water at 175 Gallons per Hour (GPH) for tanks up to 50 Gallons in size. It’s great for Freshwater and Saltwater aquariums, along with a variety of Terrarium setups.
ACCOMMODATING: The adjustable flow switch allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The directional flow nozzles allow for additional tank customization and convenience. Furthermore, the filter utilizes 4 suction cups, allowing for both vertical and horizontal mounting positions.
FULLY SUBMERSIBLE: The Cascade 600 utilizes 2 filter media chambers, and comes with filter media: 1 refillable Carbon Cartridge and 1 Bio-Sponge. In addition to optimizing the colonization of anaerobic bacteria, this filter traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water.
VENTURI AERATION: The Cascade 600 features Venturi Aeration, which provides your tank with filtered, oxygenated water. This feature eliminates the need for an air pump. Instead of two separate units, this filter combines both functions: simply connect the Air Tube and Air Muffler to the Flow Nozzle, and follow the included instructions. Please fully submerge and fill filter with water before turning on.
AERATING SPRAY BAR: In addition to the two Flow Nozzles and the Venturi Aeration, the Cascade 600 includes a Spray Bar that evenly distributes filtered water over the surface of your aquarium.

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

By Tetra Store

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

QUIET & RELIABLE The Tetra Whisper Power Filter uses 3-stage filtration to create clear clean water – PF 10 treats aquariums up to 10 gallons - 90 GPH.Included Components: Whisper PF10 Aquarium Filter (5-10 Gal)
ABSORBS ODORS Ultra-Activated carbon removes both odor and water discoloration
CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
INNOVATIVE CLEANING POWER Integrated Stay Clean technology reduces buildup on glass and binds small dirt particles to make them easier to filter
CARTRIDGE REFILLS Change cartridges monthly uses medium-sized Tetra Whisper Bio-Bag Cartridges (refills sold separately)
Age Range Description: all ranges
Included Components: Whisper PF10 Aquarium Filter (5-10 Gal)

11. Tetra Whisper EX 70 Filter For 45 To 70 Gallon aquariums, Silent Multi-Stage Filtration

By Tetra Store

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

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 - 240 GPH
FAST SETUP Sets up easily right out of the box – no priming required
CONTINUOUS FLOW Moves water continuously to prevent debris buildup
NO-MESS FILTER CARTRIDGE CHANGES Design minimizes dripping to make cartridge changes easy
SIZE This filter fits 45 to 70 gallon aquariums - 240 GPH

12. Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums, Also Ideal for Terrariums and Turtle Tanks

By Fluval Store

Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums, Also Ideal for Terrariums and Turtle Tanks

Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums
Sleek design with easy grip water control panel and redesigned media cartridge to trap more debris
Convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement
Position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature or vertically against aquarium wall to create currents or customized flow patterns
Designed for freshwater, saltwater and reptile environments up to 40 gallons

13. Fluval C2 Power Filter, Fish Tank Filter for Aquariums up to 30 Gal.

By Fluval Store

Fluval C2 Power Filter, Fish Tank Filter for Aquariums up to 30 Gal.

5-stage clip-on power filter designed for freshwater and saltwater aquariums between 10 and 30 gallons
Two mechanical stages trap large and fine debris, foams easily slide out for quick cleaning
Chemical stage with activated carbon effectively removes toxins
Biological stage features Bio-Screen pad, blocks debris and provides massive surface area for beneficial biological activity
Biological Trickle Chamber super charged for fast and efficient nitrification when loaded with Fluval C-Nodes

14. Aqueon QuietFlow 50 LED PRO Aquarium Fish Tank Power Filter For Up To 50 Gallon Aquariums

By Aqueon Store

Aqueon QuietFlow 50 LED PRO Aquarium Fish Tank Power Filter For Up To 50 Gallon Aquariums

Dense floss removes particles and debris
Activated carbon removes toxins, odors and discoloration
Patented bio-holster removes toxic ammonia and nitrites
Diffuser grid removes additional toxins while adding oxygen for more active fish
Reduces splashing makeing the return exceptionally quiet

15. Fluval FX6 High Performance Aquarium Filter, Canister Filter for Aquariums up to 400 Gal.

By Fluval Store

Fluval FX6 High Performance Aquarium Filter, Canister Filter for Aquariums up to 400 Gal.

Multi-stage filter pumps out 925 US Gal (3,500 L) of water per hour, Smart Pump advanced microchip technology continuously monitors and optimizes pump performance
Self-starting – just add water, plug in and Smart Pump will take over, trapped air auto-evacuated every 12 hours to ensure maximum efficiency
Easy water changes eliminate need to lift heavy buckets. Simply attach hosing to output and Smart Pump does the rest
Removable, stackable media baskets eliminate water bypass and hold a total of 1.5 US Gal (5.9 L) of media, all filter media included - mechanical, chemical and biological
Compact 21 in (53 cm) tall design - easily fits under most aquariums

16. MarineLand Magnum Polishing Internal Canister Filter, For aquariums Up To 97 Gallons, 10.5 IN (ML90770)

By MarineLand Store

MarineLand Magnum Polishing Internal Canister Filter, For aquariums Up To 97 Gallons, 10.5 IN (ML90770)

INTERNAL CANISTER FILTER: Submerged motor for quick and easy startup.
VERSATILE FILTRATION: Two refillable chambers house carbon or customizable filter media.
MICRON WATER POLISHING: High-efficiency polishing with the micron cartridge (included).
FOR aquariumS UP TO 97 GALLONS: Capable of filtering 290 gallons of water per hour.
Included Components: Marineland Magnum Polishing Internal Canister Filer (Ml90770)

17. Aquarium Filter Pad – FilterFirst Aquarium Filter Media Roll for Crystal Clear Water - Aquarium Filter Floss for Fish Tank Filters, 12 by 72 by ¾ Inches to 1 Inch Thick

By Aquatic Experts Store

Aquarium Filter Pad – FilterFirst Aquarium Filter Media Roll for Crystal Clear Water - Aquarium Filter Floss for Fish Tank Filters, 12 by 72 by ¾ Inches to 1 Inch Thick

2 LAYERS EQUALS CLEAR WATER: This unique 2 Layers in 1 filter media pad combines a typical aquarium filter pad with a water polishing pad. The top layer’s open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINER PARTICLES, working together to produce clean, clear water in your aquarium.
SEE THE DIFFERENCE: When you clean this true dual density filter pad, see how much more debris it traps compared to other aquarium media pads. Your fish filter, turtle filter, and all aquatic pets filters will produce clearer water.
CUT TO FIT: FilterFirst filter media aquarium pads can easily be cut to fit your filter. Our unique poly filter pad is PERFECT FOR FRESHWATER, REEF TANKS OR SALTWATER aquariums. Ideal filter pads for aquarium wet dry filters, and will also work in your sump, canister filter media, aquaponic system, and more. They’re also perfect as a turtle tank filter!
SAFE AND DURABLE: Our aquarium filter floss pad is constructed of durable polyester fibers making it strong and durable enough to be rinsed and reused several times before needing to be replaced. This dual density filter roll works great for indoor ponds or small outdoor ponds. For larger ponds use our Koi Pond filter media pads exclusively made for ponds and water gardens.
TIP: Place our FilterFirst dual action polyfilter pad in flowing water with the open filter floss weave side up to trap coarse and fine particles. Made without dyes in USA!

18. (2 Boxes) Aqueon 06084 Filter Cartridge, Medium, 3-Pack Each

By Aqueon Store

(2 Boxes) Aqueon 06084 Filter Cartridge, Medium, 3-Pack Each

(2 Boxes) Aqueon 06084 Filter Cartridge, Medium, 3-Pack each
Ready-to-use, preassembled filter cartridges install in seconds
Helps create crystal-clear, healthy water
Patented dual-sided replaceable dense-floss cartridges filter out more particles and debris
For best results replace cartridge every 4-6 weeks

19. Tetra Whisper IQ Power Filter, 175 GPH, with Stay Clean Technology, 30 Gallons

By Tetra Store

Tetra Whisper IQ Power Filter, 175 GPH, with Stay Clean Technology, 30 Gallons

QUIET AQUARIUM FILTER: The Tetra Whisper IQ Power Filter with Stay Clean technology contains a sound shield for quiet filtration less than 40 dB.
SELF PRIMING: Submerged motor starts up with no priming required.
CAPACITY: The Tetra Whisper IQ 30 Power Filter works in filters up to 30 gallons (175 GPH).
STAY CLEAN TECHNOLOGY: By maintaining healthy pH levels, creates easier maintenance for healthier fish.
CARTRIDGE REFILLS: Change cartridges monthly; uses large-sized Tetra Whisper Bio-Bag Filter Cartridges (refills sold separately).

20. Tetra Whisper Bio-Bag Filter Cartridges For Aquariums, Large, 12-Count - Unassembled

By Tetra Store

Tetra Whisper Bio-Bag Filter Cartridges For Aquariums, Large, 12-Count - Unassembled

STAYCLEAN TECHNOLOGY: Active cleaning reduces buildup on glass and the water clarifier binds small dirt particles which are easier to filter.
MAINTAINS HEALTHY PH LEVELS: Keeping stable water helps prevent pH crashes in your aquarium, providing you with easier maintenance.
TIME RELEASE TECHNOLOGY: Time release technology precisely adds healthy buffers and water clarifiers that help maintain pH and reduce unsightly debris.
ULTRA-ACTIVATED CARBON: Ultra-Activated carbon will remove odors and yellow discoloration to keep your aquarium looking better than ever.
COMPATIBLE WITH BIO-BAG FILTERS: Our StayClean technology is still compatible with any filter that currently takes Bio-Bag filters today. This pack contains 12 large, unassembled cartridge.
INTEGRATED DESIGN: Tablet holders molded into frame cover with time-release design.

21. Zilla Aquactic Pet Reptile Internal Water Filter, For Up To 40 Gallons of Water

By Zilla Store

Zilla Aquactic Pet Reptile Internal Water Filter, For Up To 40 Gallons of Water

Medium carbon cartridge included
Protective grate prevents animal from entering the filter
Patented power filtration
Easy installation
Best used for aquatic reptiles and amphibians

22. hygger Sponge Filter, Aquarium Filter Double Sponge Replaceable Media with 4 Biochemical Sponges and 1 Bag of Filtered Ceramic Balls Ultra Quiet Filter Fish Tank (S/M) (M for 15 to 55 Gallon Tank)

By hygger Store

hygger Sponge Filter, Aquarium Filter Double Sponge Replaceable Media with 4 Biochemical Sponges and 1 Bag of Filtered Ceramic Balls Ultra Quiet Filter Fish Tank (S/M) (M for 15 to 55 Gallon Tank)

【Biochemical Filtration】 With an air pump as the power source, combined with mechanical filtration, the principle of biological filtration utilizes multi-level filtration to produce good things, and the sponge can absorb fine particles to achieve the effect of purifying water. The water flow is controlled by the airflow, which is small and slow and does not impact the fish.
【Changeable filter material】Two kinds of replaceable filter materials: sponge + ceramic filter balls. You can easily remove sponges from the filter for cleaning or replacement, with a total of 4 sponges. It also has 2 media boxes with ceramic filters to help eliminate bad things and provide additional cleaning, or use other filters media.
【Easy to use】 Use a 4mm air hose to connect the end to the air pump and the other end to this tank filter. The outlet pipe in the sponge filter can be adjusted so that you can change the direction and height of the water flow (not including the pump and air hose, please choose a powerful pump for this filter according to your tank size).
【Upgrade filter】Aquarium filter can increase the amount of water dissolved, ultra-quiet, not easy to block, can be installed with filter material. Multi-layer design of filter cotton, with a large surface area, full filtration without dead ends. The suction cup is strong and secure. The bottom direction is 360 degrees rotatable.
【Suitable Size】 The medium sponge filter is 6.3 inch width and 9 inch to 13 inch height, the sponge inside circle diameter is 0.59 inch, suggest for 15 to 55 gallon fish tank. For larger tank you may need 2 of this filter. Suitable for shrimp tanks, betta fish tanks, breeding ponds, goldfish, discus, crayfish, deep-fresh fish, juvenile fish or other fish.

23. Aquarium Turtle Filter Waterfall Flow Water Clean Pump Bio-Filtration for Reptiles Tank Low Level Waterfall Filter for Small Fish Tank Turtle Tank Shrimp Amphibian Frog Crab (600L/H Aquarium Filter)

By JackSuper Store

Aquarium Turtle Filter Waterfall Flow Water Clean Pump Bio-Filtration for Reptiles Tank Low Level Waterfall Filter for Small Fish Tank Turtle Tank Shrimp Amphibian Frog Crab (600L/H Aquarium Filter)

We have 90days replacement and the refund service. All the emails will be replied within 24 hours. We have lifetime technique support, please feel free to contact us for any quality problem. We will do our best to help you.
Perfect Aquarium filter for aquatic turtle tanks, Reptiles, Amphibians, Frog, Cichlids, Newt or Fish tank in any aquarium up to 40 gallons
Easy to install,Water filter pump can be hung on the aquarium or fixed with sucker. Low water level capability(Lowest water level 1.6inch/4cm)
Water circulation and cleaning:this turtle filter helps water cycling,the Activated carbon cartridges and bio ball help clean water,absorbs odors and discoloration,provide a healthy water for your aquarium
High performance, the motor set under the water,more quiet than external filter,you can creat a waterfall with rock inside the fish tank

24. XpertMatic DB-368F 3 Stages 475 GPH Aquarium Filter for Up to 120 Gallon Fish Tank, Submersible Internal Fish Tank Filter with Water Pump, Power Filter for Fish Tank, Aquarium, Pond

By SainSmart Store

XpertMatic DB-368F 3 Stages 475 GPH Aquarium Filter for Up to 120 Gallon Fish Tank, Submersible Internal Fish Tank Filter with Water Pump, Power Filter for Fish Tank, Aquarium, Pond

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 of 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 up to 120-gallon aquariums and fish tanks, no more than 4.92ft in height.
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.
Submersible Water Pump: You can lay down the filter at the bottom of the aquarium and use it as a water pump.

25. Koller Products Replacement Filter Cartridges - Small,White

By Koller Products Store

Koller Products Replacement Filter Cartridges - Small,White

PREMIUM REPLACEMENT FILTER CARTRIDGE: Keeps aquarium water crystal clear and your fish healthy.
PRE-ASSEMBLED - READY TO USE: No assembly required, no mess.
DENSE POLY-FIBER OUTER SHELL: Dual-sided poly-fiber floss removes fish waste and other debris.
REMOVES IMPURITIES: Activated carbon eliminates organic pollutants that can degrade water quality and cloud water.
HANDS STAY DRY: Easy to Install - Easy to Replace - No Need to Get Hands Wet.
OPTIMUM FILTRATION: For optimal filter performance replace cartridge monthly or sooner if heavily soiled and reduced filer flow.
KOLLER PRODUCTS & HAWKEYE AQUARIUMS: Replacement cartridge fits Koller Products and Hawkeye power filters for the following aquariums: AquaTunes 2.5-gallon Aquarium with Sleep Sound Machine (B00HH7UVYO), AquaTunes 3.5-gallon Aquarium with Sleep Sound Machine (B00HH7UW1Q), AquaView 3-gallon (B01M4LNYWS), 4.5-gallon Aquarium (B01JS39E60), 5-gallon Aquarium (B00KIRR8BY), 6-gallon 360 Aquarium (B007R5C6CG), 6.5-gallon Aquarium (B0182CAHWS), 7-gallon Aquarium (B01JS2NNJA), Smart Tank 5-gallon Aquarium, Smart Tank 6.5-gallon Aquarium (B086D9B85Q), and Smart Tank 7-gallon Aquarium (B0865LG56Z).
DIMENSIONS: 2.25 L x .5 W x 5 H Inches. Product may ship in white SIOC packaging depending on demographic region.

26. Koller Products Replacement Filter Cartridges - Small, 6-Pack

By Koller Products Store

Koller Products Replacement Filter Cartridges - Small, 6-Pack

REMOVES DEBRIS: Dual-sided poly-fiber floss removes fish waste and other debris.
FULLY ASSEMBLED: Ready-to-use cartridge contains premium activated carbon that keeps water clean and fish healthy.
ENHANCE FILTRATION: Specially designed to enhance filtration all the while keeping your fish in best health.
OPTIMUM FILTRATION: For optimum filter performance replace cartridge monthly or sooner if heavily soiled and reduced water flow.
NO GETTING HANDS WET: Easy to install, easy to replace, No Getting Hands Wet!
SIZE SMALL: Fits Koller Products and Hawkeye power filters for the following aquariums: AquaTunes 2.5-gallon Aquarium with Sleep Sound Machine (B00HH7UVYO), AquaTunes 3.5-gallon Aquarium with Sleep Sound Machine (B00HH7UW1Q), AquaView 3-gallon (B01M4LNYWS), 4.5-gallon Aquarium (B01JS39E60), 5-gallon Aquarium (B00KIRR8BY), 6-gallon 360 Aquarium (B007R5C6CG), 6.5-gallon Aquarium (B0182CAHWS), 7-gallon Aquarium (B01JS2NNJA), Smart Tank 5-gallon Aquarium, Smart Tank 6.5-gallon Aquarium (B086D9B85Q), and Smart Tank 7-gallon Aquarium (B0865LG56Z).
DIMENSIONS: 2.38" L x .75" W x 5" H. Product may ship in white SIOC packaging depending on demographic region.

27. EA Performance Hang-On Power Filter - for Aquariums up to 55 GAL - 220GHP - Not Made in China

By Brand: EA

EA Performance Hang-On Power Filter - for Aquariums up to 55 GAL - 220GHP - Not Made in China

Stage one - mechanical: Advanced multi-layered polyfiber floss traps micro & macro organic particles and foreign debris
Stage two - chemical: Super-activated carbon granules absorbs many disolved contaminants, odor, impurities, and discoloration
Stage three - biological: Hi-flow bio-sponge promotes colonization of beneficial bacteria essential to a healthy aquatic environment. Porous, biological sponge promotes beneficial organisms colonization.
Includes no-mess cartridges and sponges, keeps hands dry and clean during cartridge changes. Plug and play design for easy installation and simple maintenance.

28. Aqua-Tech Ultra Quiet Power Filter, For Aquariums 20-40 Gallons

By Brand: AQUA-TECH

Aqua-Tech Ultra Quiet Power Filter, For Aquariums 20-40 Gallons

INCLUDES CARTRIDGE: The molded ribbed back maximizes contact with water – includes premium activated carbon.
BIOLOGICAL FILTRATION: Bio-Foam biological filtration removes toxic ammonia and nitrites on contact.
QUIET: Decoupled motor with dampeners reduces noise to below 40 dB.
POWERFUL: Impeller and motor assembly designed for efficient power usage filters 20-to 40-gallon aquariums 5 times per hour.
SLEEK DESIGN: Designed to fit standard aquarium hoods and canopies, the Aqua-Tech Ultra Quiet Power Filter makes aquatic filtration easy.
Age range description: All Life Stages

29. Aqua-Tech Ultra Quiet Power Filter, For Aquariums 10-20 Gallons

By Brand: AQUA-TECH

Aqua-Tech Ultra Quiet Power Filter, For Aquariums 10-20 Gallons

Includes cartridge: the molded ribbed back maximizes contact with water – includes premium activated carbon.
Biological filtration: bio-foam biological filtration removes toxic ammonia and nitrites on contact.
Quiet: decoupled motor with dampeners reduces noise to below 40 db.
Powerful: impeller and motor assembly designed for efficient power usage filters 10- to 20-gallon aquariums 5 times per hour.
Sleek design: designed to fit standard aquarium hoods and canopies, the aqua-tech ultra quiet power filter makes aquatic filtration easy.
Age range description: All Life Stages
Assembled Product Dimensions: 4.00" L x 8.00" W x 7.50" H

30. FEDOUR Submersible Aquarium Internal Filter, Filter with Water Pump for Fish Tank up to 35 Gallon (for 1-20 Gallon)

By FEDOUR Store

FEDOUR Submersible Aquarium Internal Filter, Filter with Water Pump for Fish Tank up to 35 Gallon (for 1-20 Gallon)

[Keep the water clean] This aquarium internal filter has ingenious shape, it is a good choice to create a clean and beautiful environment for your aquatic life.
[Powerful Internal Filter] Max flow rate: 80GPH(300L/H), Dimensions: 1.5*1.1*5.3in(3.8*2.8*13.4cm), 4 watts filter suitable for 1-20 gallon fish tank. Water flow can be adjusted according to your own needs.
[Excellent Filtration] The internal filter has excellent filtration performance, it can absorb and get rid of grease and other dirt to clean water. This filter can adapt to biochemical and physical filtration, and it can provide oxygen for your fish tank.
[Simple to install] Every filter has strong suction cups, it can be easily placed anywhere in your fish tank.
[Tip] If you find that the motor of the filter is working, but there is no water flowing out of the spray bar or outlet, it may be blocked by the water entering the motor. You can cut off the power, remove the motor, dry the water in the motor and accessories, and then reconnect the accessories, the filter can work normally.

31. NICREW Aquarium Internal Filter, Submersible Power Filter with Multiple Function for Fish Tanks 5-10 Gallon, 53 GPH, 5W

By NICREW Store

NICREW Aquarium Internal Filter, Submersible Power Filter with Multiple Function for Fish Tanks 5-10 Gallon, 53 GPH, 5W

Provides effective and thorough biological and chemical filtration, creating superior aquarium water environment
Activated carbon and fine filter foam trap debris and fish waste, absorb odors
Enable to generate abundant air bubbles and water flow, optimal for oxygen supplement and water circulation of aquarium
Equipped with adjustable air regulator that distributes a gentle flow of water, making it safe for delicate fish or shrimp
Quickly assembles and disassembles, comes with four suction cups for secure in-tank installation, suitable for both freshwater and saltwater tanks

32. Aqueon 12 Pack of Replacement Filter Cartridges, Large, for QuietFlow Aquarium Filters

By Aqueon Store

Aqueon 12 Pack of Replacement Filter Cartridges, Large, for QuietFlow Aquarium Filters

Fits Aqueon QuietFlow Filter: LED PRO Size 20 & up and E Internal 40 gallon
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
For optimal performance, change approximately every 4 to 6 weeks
Pack of 4

33. AMOSIJOY 172GPH Canister Filter, Ultra-Quiet External Aquarium Filter with Free Media for Large Fish Tanks and Aquariums (172GPH)

By AMOSIJOY Store

AMOSIJOY 172GPH Canister Filter, Ultra-Quiet External Aquarium Filter with Free Media for Large Fish Tanks and Aquariums (172GPH)

【AMOSIJOY CANISTER FILTER】AMOSIJOY external aquarium filter runs at 172GPH(650L/H), wattage is 8w, dimension is 12.2’’×7.9’’× 6.1’’. It is recommended for 30 gallon freshwater fish tanks, turtle tank and aquariums.
【LIFT-DRAW STYLE VENT VALVE & FLOW REGULATING HANDLE】After power up, drain the air out of the pump and supply water for the pump by lifting the lift-draw style vent valve, and then the filter will enter proper working condition without the need of additional water adding. By controlling the top water flow regulating handle, the water flow could be adjusted from maximum to minimum, even to zero.
【ULTRA-QUIET OPERATION】With built-in motor in the lid of the canister filter, the filter runs ultra quietly. Low wattage and high flow without air inside the filter, generates no noise. The sound is ≤ 30db, your family life will not be affected, at the same time achieving water purifying effect.
【FILTER BASKET】AMOSIJOY 172GPH external canister filter has one layer of media basket, in which different kinds of filter materials can be placed to purify the water, ensuring the water quality of the living environment for aquatic life. You can add some other filter media depending on your needs. Complimentary bio balls, ceramic bio balls speed up decomposing the fish feces, avoiding frequent change of cotton filter.

34. HiTauing 6 Pack Filter Cartridge for Top Fin EF-S Element and BF5 BETTAFLO

By HiTauing Store

HiTauing 6 Pack Filter Cartridge for Top Fin EF-S Element and BF5 BETTAFLO

Strong Compatibility: The specific size of our aquarium filter cartridge is 2.1 in L x 3.7 in W. It is very suitable for Top Fin BF5 BETTAFLO FILTER & DESKTOP AQUQRIUMS. With this aquarium filter cartridge, you can keep your water healthy every moment. It contains 6 pack aquarium filter cottons, which you can change every 2-4 weeks.
Excellent Filtration Performance: The filter cotton is made of cotton and carbon and has 3-layer filtering effect, which can filter and absorb 99% of the sundries to fish, so as to keep the water source clean and the healthy growth of fish.
Long-term Replacement of the Aquarium Filter: According to the test, the filter cotton has already withstood too much sundries for no more than four weeks, so you need to replace it with a new one to keep the water source healthy and clean at all times. Suggest to change filter cartridge every 2-4 weeks.
Quick Installation: Just remove used cartridge and rinse new cartridge under cool water to remove dust. After rinsing, insert caftridge into flter chamber to protect the health and safety of your fish all the time.
High-quality After-sales Service: HiTauing produces high-quality filter cartridges for fish tank filter, and is in a leading position in the quality and craftsmanship of all our products. We maintain a thorough quality control process to ensure compatibility with TOP FIN ELEMENT EF-S. If you have any questions, please feel free to contact us!

35. AquaMiracle Aquarium Filter 3-Stage in-Tank Filter Internal Fish Tank Filter Turtle Filter for 10-40 Gallon Fish Tanks with Dual Water Outlet & Aeration, Flow Adjustable

By AquaMiracle Store

AquaMiracle Aquarium Filter 3-Stage in-Tank Filter Internal Fish Tank Filter Turtle Filter for 10-40 Gallon Fish Tanks with Dual Water Outlet & Aeration, Flow Adjustable

PERFORMANCE – Max. Flow 130GPH (500L/H), Max lift 2.5ft (0.76m), Power 3.5W. This fish filter for fish tank size of 10-40 gallons(Choose the right filter for your tank). A filter can’t cover tanks of big differences in capacity (as claimed by some products online)! Follow our recommendations for your tank.
SAFETY – The aquarium filter is fully submersible with epoxy sealed motor. Each fish tank filter has been submerged in water and tested with super high voltage to ensure the safety.
3-STAGE FILTRATION – 3 sponge blocks – coarse sponge, carbonized sponge and fine sponge provide 3-stage filtration. COARSE SPONGE filters out large size impurities such as food residue, fish excrements, plant leaves etc.; CARBONIZED SPONGE removes odor, chlorine and fine particles; FINE SPONGE polishes water before it goes back to tank. PLUS the transparent box makes it easy to check the filtering material when they get dirty. Search code “B09W23YJD7” for the replacement sponges.
AERATING WATER - Oxygenation is very important to your fish. Different from most of the filters in the market, this turtle tank filter also provides an air venturi and air tubing to increase oxygen supply in your fish tank.
KIND REMINDER – If your tank is very large, choose 2 filters! Place a filter at both the left and right corners at the back side. You will get full filtration and great water circulation in your tank! PLUS this filter is with dual water outlet to ensure even water distribution in your fish tank!

36. Carefree Fish Aquarium Hang On Waterfall Filter Fish Tank Auxiliary Filter with Skimmer Increase Water Flow and Oxygen Remove Oil Film Simulated Waterfall Ecological Environment

By Carefree Fish Store

Carefree Fish Aquarium Hang On Waterfall Filter Fish Tank Auxiliary Filter with Skimmer Increase Water Flow and Oxygen Remove Oil Film Simulated Waterfall Ecological Environment

❤Imitate waterfall ecosystem, filter, remove oil film, increase oxygen, improve water mobility, but also can cultivate nitrifying bacteria, both ornamental and practical.
❤ The upgraded filter box can be cleaned and reused, or replaced directly. Wash once a week to ensure filtering effect.
❤The skimmer will rotate automatically to improve the efficiency of oil film removal. Adjust the fixing device at the bottom of the filter so that the filter is installed perpendicular to the water surface. The oil film remover must be perpendicular to the water surface, otherwise it cannot rotate automatically.
❤Very quiet,water pump’s noise is only 25dB. There is no need to worry about affecting your rest.
❤Attention: The filter must be filled with water when used, otherwise it cannot work normally.It can only be used as an auxiliary filter system. If you have a lot of fish, you need a main filter system.

37. AquaMiracle Aquarium Filter Fish Tank Filters for Green Water, U-V Filter Pump with Timer, Dual Mode (Aeration/Rainfall) for 40-120 Gallon Aquariums, Flow Rate and Direction Adjustable

By AquaMiracle Store

AquaMiracle Aquarium Filter Fish Tank Filters for Green Water, U-V Filter Pump with Timer, Dual Mode (Aeration/Rainfall) for 40-120 Gallon Aquariums, Flow Rate and Direction Adjustable

PERFORMANCE – Max. Flow 200GPH, Max lift 3ft, Power 6W. For tank size of 40-120 Gallons. This fish filter provides not only filtration, but also oxygenation and circulation to your tank. The flow rate is adjustable to meet different requirements to grow fish and plants.
FULLY SUBMERSIBLE – This fish tank filter is fully submersible with epoxy sealed motor. Each product has been submerged in water and tested with super high voltage before ex-work.
CLEAR WATER, WITH A TIMER – An 8-Watt U-V lamp is integrated to turn the green water to super clear. A timer, which controls the lamp to turn on at the options of every 4 hours, 8 hours, or 24 hours, provides you great convenience as it is not necessary to have the lamp on all the time. The timer is A BIG IMPROVEMENT AND ADVANTAGE comparing with the similar products in the market!
2-STAGE FILTRATION – 2 sponge blocks filter out debris and impurities such as food residue, fish excrements, plant leaves etc. This efficient filtration system helps maintain a clear and healthy environment in your aquarium. Search code “B0BJV46CS9” for the replacement sponges and "B0BLRTT4DM" for the replacement light.
2 WAYS OF USE – 1. AERATING MODE -Oxygenation is very important to your fish. Different from many filters in the market, this filter also provides an air venturi and air tubing to increase oxygen supply in your fish tank. The air flow is adjustable with the regulator. 2. RAINFALL MODE- Filtered water goes to the spray bar and flow out from the holes to create water agitation at the surface, which is very favorable to fish. The Rainfall Mode also provide more even and gentle water distribution.

38. fishkeeper Hang On Back Aquarium Filter for 5-20 Gallon, 132GPH Multi-Layer Filtration/Remove Oil Stains/Quiet/Adjustable Water Flow Fish Tank Sponge Filter for Freshwater Saltwater Tank

By fishkeeper Store

fishkeeper Hang On Back Aquarium Filter for 5-20 Gallon, 132GPH Multi-Layer Filtration/Remove Oil Stains/Quiet/Adjustable Water Flow Fish Tank Sponge Filter for Freshwater Saltwater Tank

☘️【8W 132GPH Multifunctional Aquarium Filter】: 1. Filter impurities, food residues, particles, etc. in the water to provide clean water for fish. 2. Create a waterfall effect and an immersive environment. 3. Release oxygen to supply oxygen to the fish tank. 4. In addition to basic filtration, the filter also comes with a skimmer, which can remove oil stains on the water surface.
☘️【Most Effective Filtration System】: The fish tank filter 3-layer filter cotton adopts the most effective filtration system, which can quickly filter impurities, food residues, fish feces, particulate matter, etc. in the fish tank. Provides water circulation in the fish tank without changing the water to help you keep the water in the fish tank clean.
☘️【Quiet/Removable and Washable】: The fish tank sponge filter is super quiet, <30dB. At the same time, it is equipped with a shock-absorbing balance cover, which is kept vertical to the fish tank to avoid noise caused by hitting the fish tank and is quieter. The filter is removable and washable, we recommend cleaning the filter cotton and filter every 2 weeks.
☘️【Excellent Quality/For 5-20 Gal】: The aquarium hang on filter is made of ABS plastic, which is strong, quiet and durable. The adjustable flow knob can control the size of the waterfall, and the extension tube can accommodate different water levels. The water inlet has a filter sponge to prevent small fish from being sucked away. Fish tank filter pushes water at 132GPH per hour, suitable for fresh and saltwater aquariums from 5-20Gal
☘️【Fishkeeper Hang On Back Aquarium Filter】: Note: For the first use, please add water first and then turn on the power; the filter will suck air when using it for the first time, this is normal, please wait for the air to be discharged. Buy the filter, if there is any problem, fishkeeper will give you a 1-year warranty, please feel free to contact.

39. AQQA Aquarium Filter Fish Tank Sponge Filter Whisper Submersible Filters for Aquarium Foam Filter for Freshwater & Saltwater(Medium for 20-110 Gallon)

By AQQA Store

AQQA Aquarium Filter Fish Tank Sponge Filter Whisper Submersible Filters for Aquarium Foam Filter for Freshwater & Saltwater(Medium for 20-110 Gallon)

【Ultra Quiet Submersible Filter】 AQQA Aquarium Sponge Filter is air-powered and ultra-quiet, providing efficient filtration without disturbing your fish; (Air pump and air hose are not included in the package) Please prepare a suitable air pump for this filter according to your tank size.
【Mechanical and Biological Filtration】 The sponge filter provides mechanical filtration, the vertical pattern design increases the filtering area and helps to filter efficiently; Bio ceramic media balls provide biological filtration, it helps with decomposing harmful substances and cultivating beneficial nitrifying bacterial at the same time.
【Replaceable Filter Media】 The filter sponge and bio ceramic media balls are both replaceable. You can easily remove the sponge from the filter for cleaning or replacement. (2 sponges in the package in total) The bio cermaic balls are also washable and reusable, or you can change them with other filter media as you demand.
【Multi-functional Aquarium Filter】 The fish tank sponge filter combines filtration, aeration and water circulation in one, helping to keep your fish tank crystal clean and provide an excellent living environment for your aquarium inhabitants.
【Wide Application】 AQQA sponge filter can work great in breeding fry tank, shrimp and betta fish tank, freshwater and marine tank. Small filter is suitable for 5-20 gallon tank, medium filter is suitable for 20-110 gallon tank. Please squeeze the sponge repeatedly until the sponge is full of water, so that the filter can sink on the bottom of the aquarium.

40. FEDOUR 165GPH Aquarium Internal Filter U-V, 8W Adjustable Fish Tank Filter Pump, U-V Submersible Filter for 10-50 Gallon Tank, with Biochemical Cotton, Activated Carbon Cotton, Ceramic Balls

By FEDOUR Store

FEDOUR 165GPH Aquarium Internal Filter U-V, 8W Adjustable Fish Tank Filter Pump, U-V Submersible Filter for 10-50 Gallon Tank, with Biochemical Cotton, Activated Carbon Cotton, Ceramic Balls

【Specifications】Powerful aquarium internal filter, Power: 8W, Max Water Flow: 165GPH, Size: 7.5*2.9*2.6in, Length of the Spray Bar: 6.2in/16cm, Length of the Power Cable: 4.9FT. Suitable for 10-50gallon fish and turtle tank.
【Excellent filtration performance】Built-in U-V lamp can purify the water and make the green water clean. This fish tank filter pump also has three kinds of filter media: 1 piece of activated carbon cotton, 2 pieces of biochemical cotton and some ceramic balls, which have good filtration effect.
【Two Types of Water Outlets】The fish tank internal filter has two types of outlets: Spray Bar and Duckbill Outlet, and both of which can be rotated 360°. There is an adjustable knob in the spray bar, which can adjust the water flow of the filter, and the adjustment range is 0-165GPH.
【Silent Filter】For this new aquarium filter, we have improved the internal structure of the pump to further improve the sound insulation. Once you put the filter in the water and turn it on, you can barely hear the motor, only the sound of the water spraying out. The noise level is <35dB.
【Unique Design】The Internal filter has a unique appearance design and looks very distinctive. This filter adds a Minimum Water Level design. Put the filter into the water, pay attention to check that the water level cannot be lower than the Minimum Water Level. You can also completely immerse the filter in the water. And there are four strong suction cups in the filter, which can firmly install the filter in the fish tank without slipping off easily.

author img Lucas Carter

Our Editor-in-Chief, Lucas Carter, brings over twenty years of hands-on experience in the world of aquaristics. He is not just an expert in aquarium keeping but also a passionate advocate for the hobby. Lucas's extensive knowledge of aquarium accessories, understanding of different aquatic ecosystems, and a keen eye for product quality set the standard for our reviews. His personal commitment is to guide both novice and experienced aquarium enthusiasts through the vast ocean of products, helping them create the ideal environment for their aquatic friends.