Designed specifically for Fluval FX5 and FX6 canister filters, Bio-Foam performs double duty as both an effective mechanical and biological media.

• Mechanical/Biological filter media
• Dense structure ideal for trapping small particles
• Intricate, porous network provides vast surface area to facilitate growth of beneficial bacteria
• Helps create clean and healthy water conditions
• For use in freshwater and saltwater aquariums
• Convenient 2-pack format
• Specially designed foam pads for FX4, FX5 and FX6 high performance canister filters.