Fluval Bio-Foam Aquarium Filter Block (2pcs) For 404/5/6/7

Why we love it:

• Designed for use with the Fluval 404/5/6/7 filters and these foams are custom made to fit these filters to prevent any waste or debris bypassing the filtration
• The material also promotes biological filtration as the surface is ideal for bacteria to colonise, creating a natural process to keep your tank clean, clear and healthy
• The foams porous surface is designed to trap waste and debris without slowing the flow of water through the filter

What you need to know:

• 1 x Fluval Bio-Foam Aquarium Filter Block (2pcs) for 404/5/6/7
• For use in the external 404/5/6/7 Filters by Fluval
• Promotes biological filtration