Best Api Aquariums Filters in 2026

Chemical filter media designed specifically for the Fluval Flex/Spec/Evo aquarium filters

Effective at removing and reducing nitrite

Helps prevent fish loss and supports beneficial bacteria for a healthier aquatic environment

Combination of Fluval Carbon and Fluval Ammonia Remover helps protect the aquarium from toxic build-ups of ammonia

Chemical filter media eliminates water impurities, odors and discoloration

Opens up space inside the aquarium filter to include additional media if desired

Premium, research grade, low-ash carbon is porous and provides large amounts of surface area for absorption of impurities

Carbon filter media improves water clarity and color, while also removing odors

Ideal for use with most canister filters; for best results, replace every 4 weeks

Performs double duty as both mechanical and chemical filter media

Pad traps small particles and debris for mechanical filtration

Carbon helps remove odors, discolorations, heavy metals and organic contaminants for chemical filtration

Mechanical filter media captures large particles and debris

Custom fit to prevent debris bypass

Ideal pore size allows efficient water flow and longer media lifespan

Provides mechanical filteration of large particles

Prevents premature clogging

Enhances biological filtration

Quality Filtration: Quick-Clear is specifically designed to fit the Fluval 307/407 and 306/406 canister filters. These thick, ultra-fine polyester water polishing pads effectively trap micro particles and debris, leaving your aquarium crystal clear.

Usage: Ideal for use when cloudy water occurs or immediately following tank maintenance.

Mechanical Filters: Durable, extra thick, micro-fine polyester pads help trap micro particles and debris.

Filter Compatibility: Compatible with Fluval Filter Series 106, 206, 306, 406, FX5, FX6, 105, 205, 305, 405, 104, 204, 304, and 404.

Water Clarification: BioMax is a premium-grade biological filter media that provides superior filtration and helps reduce and control ammonia and nitrate levels for a healthy nitrogen level in the water.

Ideal Environment: BioMax helps create crystal clear water, making ideal conditions for fish and plants in your tank. The complex porous design ensures optimal contact time as water passes through.

Keeps unwanted waste from harming your fish

Rids your tank of debris and also makes use of beneficial bacteria in your aquarium

Includes one foam block and one bag of BioMax, 2.1 ounces

Replacement ribbed hosing for the Fluval FX4, FX5 and FX6 Canister Filters (A214, A218 and A219)

Replacement part A20236

Easy to replace

Premium 2-in-1 chemical and mechanical filter media designed specifically for the Fluval 307/407 and 306/406 High Perfmorance Canister Filters

Effective at reducing and controlling toxic ammonia spikes and trapping floating particles for clear water (debris, excess food and waste)

Ideal for new and heavily stocked aquariums and use after medicating fish

Premium biological and mechanical filtration media designed specifically for the Fluval 306, 307 canister filters

Bio-Foam Max: 2-in-1 biological and mechanical filtration media with rippled surface pattern offers 30% more area for increased debris and waste capture

Bio-Foam: mechanical filtration media precision cut (no gaps) to prevent debris bypass and complex foam structure maintains consistent water flow

Premium biological and mechanical filtration media designed specifically for the Fluval 406, 407 canister filters

Bio-Foam Max: 2-in-1 biological and mechanical filtration media with rippled surface pattern offers 30% more area for increased debris and waste capture

Bio-Foam: mechanical filtration media precision cut (no gaps) to prevent debris bypass and complex foam structure maintains consistent water flow

Fluval eTEC (Efficient Technology) construction employs cutting-edge design, materials & manufacturing methods to deliver powerful pump performance, reduced energy consumption and ultra-quiet operation

Powerful motor generates constant pumping power and pressure that endures over time and re-engineered, precision-crafted pump runs up to 25% quieter than previous generation

Energy-efficient – some 07 series filters draw as little energy as a single household LED lightbulb

Chemical filter media that removes toxic ammonia as water passes over it

Provides a healthy environment for well-stocked freshwater aquariums

Controlling ammonia levels reduces stress on fish

Mechanical filter media easily installed over the filter intake

Effectively collects fine debris and keeps your aquarium clean

Prevents small or baby fish from getting trapped in the filter

Filter Compatibility: Compatible with Fluval Series Canister Filters 06, 07, FX, and more.

Water Clarification: ClearMax is a premium-grade resin chemical filter media that absorbs phosphate, nitrite, and nitrate. The filter media makes aquarium maintenance easier and reduces odors.

Ideal Environment: ClearMax helps create crystal clear water, making ideal conditions for fish and plants in your tank.

Fluval has been providing quality aquatic products at value pricing for years. Whether you have a beginner setup or even up to advanced seasoned aquatic experts, Fluval provides everything you need for quality, healthy aquatic environments.

Made in the USA with quality materials

Field tested to ensure nothing but the best for your pet

Specifically designed for the Fluval 07 and 06 performance canister series for use in freshwater and saltwater aquariums

Increases the amount of oxygen in your tank for healthier fish and plants

Distributes water evenly for delicate aquascapes and eliminates dead spots in your aquarium

Premium biological and mechanical filtration media designed specifically for the Fluval 206, 207 canister filters

Bio-Foam Max: 2-in-1 biological and mechanical filtration media with rippled surface pattern offers 30% more area for increased debris and waste capture

Bio-Foam: mechanical filtration media precision cut (no gaps) to prevent debris bypass and complex foam structure maintains consistent water flow

A chemical-free and maintenance-free way to purify water that eradicates suspended bacteria and algae in the water column that contribute to cloudy and green water, respectively

Helps prevent the growth of cyanobacteria that often smothers and destroys aquatic plants and does not harm beneficial, surface-dwelling bacteria

CCFL (Cold Cathode Fluorescent Light) technology runs cooler than traditional UVC bulbs to last up to 30,000 hours (3X longer)

【Fitment】-Replcement carbon impregnated foam filter pads are compatible with the Fluval FX4, FX5 and FX6 high performance canister filters

【Fuction】-These carbon impregnated pads capture micro particles as the water passes through. The added carbon removes odour, discoloration, as well as heavy metals and organic contaminants, giving crystal clear water in your aquarium.

【Range of Application】- Carbon impregnated filter pads are suitable for both freshwater and marine aquariums.

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

18 total 306/406, 307/407 Ammonia Remover media

Specifically designed for Fluval 306/406 and 307/407 external filters

Ideal for new and heavily stocked saltwater and freshwater aquariums

Bundle includes: 2 pieces Bio-Foam, 6 pieces Ammonia Remover, 6 pieces Phosphate Remover, 6 pieces Nitrite Remover

For use in freshwater and saltwater aquariums

Replacement media for Fluval 407 aquarium filters

Replacement foam insert frame for Fluval 405 and 406 Canister Filters

Holds foam inserts in place for each of these filters

Fluval filters provide cleaner, healthier aquarium water