Designed specifically for the Fluval Nano filter (Item #A455), this Bio-Foam traps debris for effective mechanical filtration.

• Mechanical filter media
• Fits perfectly inside filter chamber to prevent any debris from escaping
• Ideal pore size allows for efficient water flow, less clogging and long-lasting filtration
• Large surface area provide abundant space for the growth of beneficial, nitrifying bacteria

• Specifically designed to fit inside Fluval Nano Filter Suitable for freshwater environments