Fluval Bio-Foam for FX2 Canister Filter, 2-Pack

Designed specifically for the FX2 canister filter, this foam pad features a special rippled surface for effective 2-in-1 mechanical and biological filtration.. Compatibility. FX2 Canister Filter. Features. Mechanical/Biological filter media. Rippled pattern offers more surface area to effectively trap large debris. Complex foam structure maintains consistent water flow and promotes beneficial bacteria growth. Specifically designed for the FX2’s smaller size. For use in freshwater or saltwater aquariums. Convenient 2-pack format