Specifically designed to fit inside the Fluval Nano Filter, Fluval Bio-Foam captures debris for effective mechanical filtration. It has large surface areas that encourage the proliferation of friendly nitrifying bacteria, which provide efficient biological filtration.

Custom-sized, it fits perfectly inside the filter chamber to prevent debris bypass. Bio-Foam has a pore size that allows efficient water flow, less clogging and long-lasting filtration.

Key Features:

• Specifically designed to fit inside Fluval Nano Filter
• Captures debris for effective mechanical filtration
• Large surface areas encourage the proliferation of friendly nitrifying bacteria
• Provides efficient biological filtration
• Fits perfectly inside the filter chamber to prevent debris bypass
• Ideal pore size allows efficient water flow, less clogging and long-lasting filtration
• Suitable for freshwater environments