Designed specifically for the Fluval 306/307/406/407 Canister Filters, Bio-Foam Plus is a dual biological/mechanical foam with a large porous surface that supports expansive beneficial bacteria growth.

• Fluval Part# A237
• Premium biological and mechanical filtration
• Rippled surface pattern offers 30% more area to efficiently trap waste and debris
• Prevents premature clogging extending life of subsequent filter media
• Complex foam construction helps maintain even and consistent water flow
• Ideal surface for growth of beneficial, nitrifying bacteria
• Custom fit with no gaps to maximize filtration efficiency
• Convenient 2-pack format
• Replace every 6 months
• For use in freshwater and saltwater aquariums

To help remember when to do maintenance, use the Fluval Canister Filter Maintenance Checklist (pdf in new window).

Further reading:

• Fluval 06 Series User Manual
• Fluval 07 Series User Manual