Compare canister filters, HOBs, skimmers and rollmats through specs, prices and the tanks using them.
Build your setup
Find the gear behind the community's tanks.
Tanks, stands, lids
Canister filters, HOBs, protein skimmers, rollmats
Planted LEDs, high-actinic coral LEDs
Heaters, chillers, electronic controllers
Return pumps, wavemakers, gyres
Aquasoils, sands, dry reef rock, driftwood
Conditioners, RODI systems, marine salt mixes
Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
Tools, food, testing, and the finishing touches
In community tanks
Chosen by aquarists
892 matching items · Most used first
FilterFluval
The Fluval 207 is a compact canister filter for 20-45 gallon aquariums that delivers 206 GPH of flow with up to 25% quieter operation than the previous generation. Its energy-efficient 10W motor drives Bio-Foam, carbon, and BIOMAX media through EZ-Lift baskets for easy, mess-free maintenance.
0 showcased tanks
FilterFluval
Foam filter insert for the Fluval 404 canister filter (also fits 405 and 406); the foam captures large particles and debris for effective mechanical filtration as the crucial first stage, and its custom fit prevents debris bypass while enhancing biological filtration.
0 showcased tanks
FilterFluval
Activated carbon (Active C) replacement insert for Fluval AquaClear 20 and 30 power filters; the premium research-grade carbon provides chemical filtration with superior adsorption that eliminates odors, discoloration, and impurities, improving water clarity in freshwater and saltwater aquariums.
0 showcased tanks
FilterFluval
A natural ion-exchange (clinoptilolite) chemical filter media insert for the Fluval AquaClear AC20 and AC30 power filters; it removes and controls toxic ammonia and nitrite in new or heavily populated freshwater aquariums.
0 showcased tanks
FilterFluval
A premium, research-grade activated carbon insert for the Fluval AquaClear AC50 power filter; its exceptional adsorption qualities eliminate odors, discolorations, and toxins for healthy, crystal-clear freshwater or saltwater aquariums.
0 showcased tanks
FilterFluval
A natural ion-exchange (clinoptilolite) chemical filter media insert for the Fluval AquaClear AC50 power filter; it removes and controls toxic ammonia and nitrite in new or heavily populated freshwater aquariums.
0 showcased tanks
FilterFluval
A premium, research-grade activated carbon insert for the Fluval AquaClear AC70 and AC110 power filters; it removes odors, discolorations, and toxins for healthy, crystal-clear freshwater or saltwater aquariums.
0 showcased tanks
FilterFluval
A replacement mechanical filter pad for the Fluval Betta Premium Aquarium Kit (2.6 gal); it is a 2-in-1 water diffuser and polisher that disperses flow during the final stage of filtration and fits seamlessly within the diffusion chamber, with monthly replacement recommended.
0 showcased tanks
FilterFluval
Two-pack of Bio-Foam pads designed specifically for the Fluval FX2 canister filter; the foam pads capture large particles and debris for effective mechanical filtration while also providing surface area for beneficial bacteria.
0 showcased tanks
FilterFluval
Bio-Foam replacement filter insert for the Fluval AquaClear 110 power filter, serving as both mechanical and biological media; the dense foam traps particles and debris while providing an ideal surface for beneficial bacteria to colonize, safe for freshwater and saltwater aquariums.
0 showcased tanks
FilterFluval
Bio-Foam replacement filter insert for the Fluval AquaClear 20 power filter, serving as both mechanical and biological media; its dense 30 PPI foam traps particles and debris while providing an ideal surface for beneficial bacteria to colonize, and it fits aquariums from 5 to 20 gallons in fresh or saltwater.
0 showcased tanks
FilterFluval
A blue Bio-Foam insert for the Fluval AquaClear AC30 power filter; its ultra-dense 30PPI construction traps particles and debris for effective mechanical filtration while providing an ideal surface for beneficial bacteria growth.
0 showcased tanks
FilterFluval
A blue Bio-Foam insert for the Fluval AquaClear AC50 power filter; its ultra-dense 30PPI construction traps particles and debris for effective mechanical filtration while providing an ideal surface for beneficial bacteria growth.
0 showcased tanks
FilterFluval
Replacement Bio-Foam insert for Fluval AC70 and AquaClear 70 power filters; the ultra-dense 30PPI foam removes particles and debris for effective mechanical filtration and also serves as biological media by providing an ideal surface for beneficial bacteria to establish and thrive.
0 showcased tanks
FilterFluval
Fluval Carbon is a premium bituminous activated carbon filter media that removes impurities, odors, discoloration, and toxins from aquarium water for sparkling clear results. Ideal for canister or power filters, the pack includes three 100 g bags and should be replaced monthly.
0 showcased tanks
FilterFluval
Fluval Clear X Filter Pillow. An aquarium filtration product.
0 showcased tanks
FilterFluval
ClearMax phosphate-remover filter media for Fluval filters; the science-grade resin adsorbs phosphate, nitrite, and nitrate from aquarium water, helping prevent algae growth and maintain crystal-clear conditions in freshwater and saltwater aquariums.
0 showcased tanks
FilterFluval
Filter media formulated for Fluval external canister filters, covering mechanical, chemical, and biological filtration; the range includes BioMax porous ceramic rings that house beneficial bacteria, carbon and ammonia-remover media that eliminate impurities and odors, and ClearMax resin that adsorbs phosphate, nitrite, and nitrate.
0 showcased tanks
FilterFluval
High-performance external canister filter rated for aquariums up to 250 gallons, pumping 700 GPH through multi-stage mechanical, chemical, and biological media. Features Smart Pump self-priming technology, a utility valve for easy water changes, and all filter media included.
0 showcased tanks
FilterFluval
A maintenance kit for the FX4 canister filter. Use with the matching Fluval filter model.
0 showcased tanks
FilterFluval
Three-pack of extra-thick, micro-fine polyester water polishing pads designed for Fluval FX5 high-performance canister filters; they trap micro particles and debris as water passes through, ideal for clearing cloudy water or use after tank maintenance, for freshwater and marine aquariums.
0 showcased tanks
FilterFluval
Fluval FX6 high-performance canister filter for aquariums up to 400 gallons; 925 GPH, 43W, with 1.5 gallons of media capacity. Features SMART PUMP auto start/stop, multi-stage filtration, and a utility valve for easy water changes; media included.
0 showcased tanks
FilterFluval
A maintenance kit for the FX6 canister filter. Use with the matching Fluval filter model.
0 showcased tanks
FilterFluval
A coarse filter pad replacement for the Fluval Kühl Microscaping Aquarium Kit; the pad provides coarse mechanical filtration, trapping larger particles and debris, and fits into the filter's cartridge frame.
0 showcased tanks
FilterFluval
A fine filter pad replacement for the Fluval Kühl Microscaping Aquarium Kit; the fine pad with carbon and ammonia remover provides fine mechanical and chemical filtration, polishing the water of the nano aquarium.
0 showcased tanks
FilterFluval
A replacement filter cartridge designed for the Fluval Liv Microscaping Aquarium Kit, providing mechanical and chemical filtration to keep the nano tank's water clean and clear.
0 showcased tanks
FilterFluval
Replacement BioMax biological filter media (2.1 oz) designed for Fluval Spec, Flex, and EVO nano aquariums, providing stage-3 biological filtration with a large, porous surface area for beneficial bacteria that break down fish waste, helping keep aquarium water clean and healthy.
0 showcased tanks
FilterFluval
Replacement foam pads designed for Fluval Spec aquariums; the foam pad effectively removes large particles and debris for mechanical filtration, and its pore structure also supports biological filtration activity.
0 showcased tanks
FilterFluval
Fluval Spray Bar Kit. An accessory for the matching aquarium filtration system.
0 showcased tanks
FilterFluval
The Fluval U2 is an internal underwater filter for aquariums of 12 to 30 gallons with a 400 L/H (105 GPH) pump output, providing 3-stage filtration with 2 foam pads, 2 poly/carbon cartridges, and BioMax biological rings. It features adjustable 3-way flow control (top output for circulation and oxygenation, integrated spray bar for a gentle even flow, bottom output for deep-water agitation) and a flip-top lid for easy cartridge access, and can be installed vertically or horizontally for fresh, marine, or reptile setups.
0 showcased tanks