Bio-Foam Max for Fluval 207/307 and 206/306 External Filters, 2-Pack

Specifically designed for high-performance Fluval 207/307 and 206/306 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 surface area for effective waste and debris filtration.

Key Features:

• Provide premium biological and mechanical filtration media;
• Feature a wavy spiked pattern offering 30% more surface area to effectively trap waste and debris;
• Prevent premature filter clogging, thus extending the lifespan of other filter media;
• Include a complex foam structure that helps maintain a stable and consistent water flow;
• Provide an ideal surface for the proliferation of beneficial nitrifying bacteria;
• Are perfectly custom-fitted to maximize filtration performance;
• Come in a convenient 2-pack;
• Should be replaced every 6 months;
• Suitable for freshwater and saltwater aquariums.