Fluval Bio-Foam+ - FX4/FX5/FX6

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

• Mechanical/Biological filter media
• Intricate, porous network provides vast surface area to facilitate growth of beneficial (nitrifying) bacteria
• Effectively captures small particles and debris, particularly those that are not retained by the first stage of foam filtration
• Custom fit for FX Series filters to increase filtration efficiency
• Helps create a healthy aquarium and ideal water conditions
• Rinse every 3 months
• Replace every 6 months
• For fresh and saltwater use