Bio-Foam Max for Fluval 406 and 407 External Filters, 2-Pack

Specifically designed for Fluval 407 and 406 high-performance external filters, Bio-Foam Max 2-in-1 filter blocks provide both biological and mechanical filtration media. The blocks have a wavy pattern offering 30% more contact surface for efficient filtration of waste and debris.

Key features :

• Consist of premium biological and mechanical filtration media;
• Have a wavy spiked pattern offering a 30% increased contact surface for efficient trapping of waste and debris;
• Prevent premature filter clogging and thus extend the life of other filter media;
• Feature a complex foam structure that helps maintain stable and uniform water flow;
• Provide an ideal surface for the proliferation of beneficial nitrifying bacteria;
• Are perfectly custom-fitted to maximize filtration performance;
• Are available in a convenient 2-pack;
• Should be replaced every 6 months;
• Are suitable for freshwater and saltwater aquariums.