Fluval FX Series Bio-Foam

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Designed specifically for the FX canister filter, this foam pad features a special rippled surface for effective 2-in-1 mechanical and biological filtration. Key Features: Mechanic al/Biological filter media Rippled pattern offers 30% more surface area than traditional flat foam Effectively traps large debris Complex foam structure maintains consistent water flow and promotes beneficial bacteria growth For use in freshwater or saltwater aquariums Convenient 2-pack format Show more