Fluval FX4/FX5/FX6 Bio-Foam, Replacement Aquarium Filter Media, 2-Pack, A239

Fluval FX4/FX5/FX6 Bio-Foam, Replacement Aquarium Filter Media, 2-Pack, A239

• Replacement Filtration: Bio-Foam filter inserts are designed for use in Fluval FX4, FX5 and FX6 Canister Filters in freshwater and saltwater aquariums.
• Double Duty: These Bio-Foam filters perform as both mechanical and biological filters.
• Intricate Design: Bio-Foam’s dense structure is ideal for trapping small particles, with an intricate, porous network that provides vast surface area to facilitate biological activity.
• Maintain Clean Environment: Proper filtration helps create clean and healthy water conditions.
• Pack Includes: Each package contains two replacement Bio-Foam filters.

Fluval Bio Foam Pads are specially designed for Fluval FX5/6 High Performance Canister Filters. Bio Foam Pads provide outstanding mechanical and biological filtration thanks to an intricate pore structure that offers a large surface area for the growth of helpful nitrifying bacteria. In addition, they trap small particles that are not retained by the first stage of foam filtration.