Designed specifically for the Fluval performance canister filters, Bio-Foam captures large particles and debris for effective mechanical filtration.

• Mechanical filter media
• Custom fit to prevent debris bypass
• Ideal pore size allows efficient water flow and longer media lifespan
• Enhances the biological filtration process
• Convenientmultipack
• 2 x foam filter blocks included (FX series, 3 x filter blocks)