Best Fluval 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

Chemical filter media removes heavy metals, odors, discolorations and pollutants

Premium, research-grade carbon with vast surface area for effectively absorbing impurities

Help creates crystal clear, sparkling aquarium water

Mechanical filter media traps large particles and debris

Simple and easy replacement process

Equipped with convenient handle for easy handling

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

Fluval Foam Filter Block provides effective mechanical filtration by trapping large particles and debris

Biological activity will eventually occur in pore structure

Filter media helps create crystal clear, sparkling aquarium water for healthier aquarium environment

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

Replacement Filtration: Bio-Foam filter inserts are designed for use in Fluval FX4, FX5 and FX6 Canister Filters in freshwater and saltwater aquariums.

Double Duty: These Bio-Foam filters perform as both mechanical and biological filters.

Intricate Design: Bio-Foam’s dense structure is ideal for trapping small particles, with an intricate, porous network that provides vast surface area to facilitate biological activity.

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.

Mechanical filter media effectively traps micro particles and debris

Durable, extra thick, micro-fine polyester pads

Provides crystal clear aquarium water

Mechanical filter media prevents finer filter media from clogging

Solid ceramic rings trap large and medium solid particles

Works to prevent clogging of finer filter modules

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

Chemical filter media with two unique filtering sides that combine to provide thorough chemical filtration

Polyester side filters out fine debris and contaminants

Carbon side filters out harmful liquid substances, colorants and odors

Fluval Stratum is made of mineral rich volcanic soil

Stimulates strong aquarium plant growth

Promotes neutral to mildly acidic pH

Betta fish food that contains up to 40%, nutrient-rich Black Soldier Fly Larvae, the first ingredient

High in multiple proteins like whole salmon – rich in Omega 3 and 6 for healthy skin, scales and fins

Fortified with essential vitamins, amino acids and minerals for a balanced daily diet

Tropical fish food that contains up to 40%, nutrient-rich Black Soldier Fly Larvae, the first ingredient

High in multiple proteins like whole salmon – rich in Omega 3 and 6 for healthy skin, scales and fins

Fortified with essential vitamins, amino acids and minerals for a balanced daily diet

Replacement media for the Fluval C3 Power Filter

Performs the first and second stages of mechanical filtration

Filters out debris

Replacement media for the Fluval C4 Power Filter

Bio-Screen provides an ideal surface area for biological activity to occur

Works to block debris and create an easy water flow

Immediately establishes safe biological aquarium environment

Powerful responsive ammonia and nitrite elimination

Prevents fish loss

Biological filter media enhances the elimination of fish wastes

Large surface area provides optimal colonization of beneficial bacteria

Helps create crystal clear, sparkling aquarium water for healthier aquarium environment

Replacement filter media designed for use with the Fluval C4 Power Filter

Chemical filter media removes toxic ammonia in freshwater aquariums only

Controlling ammonia levels reduces stress on fish

Provides effective mechanical filtration

Fits perfectly inside the filter chamber to prevent debris from escaping

Ideal pore size allows efficient water flow, less clogging and long-lasting filtration

Works to rid your tank of toxins

Ensures your water is the best quality for your fish

Premium grade carbon providing superior adsorption qualities

All-natural water care creates a safe biological habitat to prevent fish loss by eliminating ammonia and nitrite

Infused with a powerful team of beneficial bacteria that immediately inoculates aquarium water

Extremely effective when setting up a new aquarium or introducing new fish to an existing one and useful during water changes and filter media changes, when good bacteria is depleted

All-natural water care creates a safe biological habitat to prevent fish loss by eliminating ammonia and nitrite

Infused with a powerful team of beneficial bacteria that immediately inoculates aquarium water

Extremely effective when setting up a new aquarium or introducing new fish to an existing one and useful during water changes and filter media changes, when good bacteria is depleted

Replacement media for the Fluval C3 Power Filter; For freshwater or marine environments

Absorbs impurities that lead to discoloration and odor

Improves water clarity

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

Replacement part A20236

Easy to replace