10 Best Fish Tank Filters

After analyzing 827 products, scanning 4065 reviews, spending more than 36 hours of research and speaking with our test users, we think the Marineland Penguin Power Filter is the one of the Best Fish Tank Filter on the market.

Marineland Penguin Power Filter – Best Overall Fish Tank Filter

Marineland Penguin Power Filter
  • Certified flow rate of 350GPH, perfect for all aquariums up to 70-gallon, uses two Rite-Size C filter cartridges
  • Delivers easy, three stage mechanical, chemical, and biological aquarium filtration
  • Convenient Penguin Rite Size Cartridges come ready to use with each filter; Three-stage BIO-Wheel filters for freshwater and saltwater aquariums
  • Please refer the Product Manual, Set up Manual and the Instructional Video before use

Whisper In-Tank Filter 40i with BioScrubber for 20 – Best under $50

Whisper In-Tank Filter 40i with BioScrubber for 20
  • Designed for use in aquariums up to 40-Gallons
  • Uses large Bio-Bag filter cartridges
  • Install with a hanger and suction cup or two suction cups depending on desired placement
  • Remove bottom to access impeller for proper cleaning
  • For aquariums and terrariums

Aqua Clear

Aqua Clear
  • Refiltration system that offers superior contact time with filter media and energy efficient pump lowers operating costs
  • Quick and easy installation
  • Filtration volume is up to 7 times larger than comparable filters
  • Comes equipped with AquaClear Foam, Activated Carbon and BioMax and Cycle Guard for continuous biological filtration and superior water quality
  • 2-year warranty; Ideal for aquariums up to 50 gallons

Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks – Premium Pick

Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks
  • 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.
  • 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.
  • 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.

Marineland Rite-Size Cartridge C – Best Budget Fish Tank Filter

Marineland Rite-Size Cartridge C
  • Rite-Size C filter cartridge
  • Meets the highest standards of water purification and operational ease
  • Each cartridge is pre-assembled
  • A perfect fit for every filter.

Aqueon Replacement Filter Cartridges Medium (6 Pack)

Aqueon Replacement Filter Cartridges Medium (6 Pack)
  • Fits Aqueon QuietFlow Filter: LED PRO Size 10 and E Internal 20 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
  • Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria

Tetra Whisper Assembled Bio-Bag Filter Cartridges for Aquariums

Tetra Whisper Assembled Bio-Bag Filter Cartridges for Aquariums
  • 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
  • Easy to Assemble, Easy to Replace
  • Please read all label information on delivery

Tetra Whisper Extra Small Filter Cartridges

Tetra Whisper Extra Small Filter Cartridges
  • Extra Small filter cartridges
  • Ultra-Activated carbon removes odors and discoloration
  • Dual-sided mesh catches debris and fish waste
  • Fits AquaCulture Aquarium Kits up to 3 gallons
  • Helps keep water sparkling clean

Tetra 78000 Whisper IQ Power 10 Gallon Filter

Tetra 78000 Whisper IQ Power 10 Gallon Filter
  • USES STAYCLEAN TECHNOLOGY: A quiet, durable and easy filter system that uses Stay Clean Technology to provide easier maintenance and healthier fish.
  • FLOW CONTROL: Reduce the flow as low as 10 GPH for Bettas, plants, feeding or other low flow needs.
  • QUIET: A sound barrier decouples the motor from the filter to produce sound less than 40 decibels. Minimal noise
  • NO PRIMING REQUIRED: The submerged motor starts up with no priming required.
  • FOR 10 GALLON AQUARIUMS: The adjustable intake telescopes up or down to fit your aquarium's needs.

Aqueon QuietFlow 10 Aquarium Power Filter

Aqueon QuietFlow 10 Aquarium Power Filter
  • Provides mechanical, chemical, biological filtration plus additional assistance with the Aqueon specialty filter pads
  • Self-priming - starts up automatically after cleaning or power interruptions.
  • Certified flow rates that assure proper water circulation for improved fish health
  • LED indicator light flashes when it's time to replace clogged cartridges by monitoring actual water levels.
  • Internal pump design helps dampen noise and eliminate leaks
  • Lifetime warranty; Ideal for aquariums up to 20 gallons
  • Uses medium Aqueon replacement cartridges

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