Designed specifically for Fluval 207/307 and 206/306 high performance canister filters, Bio-Foam Max is a 2-in-1 biological and mechanical media with a corrugated surface pattern that provides up to 30% more area for effective Filters waste and debris. main feature : Premium biological and...

●Have Physical/biological/adsorption triple filtration function. Activated carbon + wool pad. 【Triple filtration system】 1. Physical filtration, use wool pad to remove impurities in the water. 2. Biological filtration, where filter bacteria growing on the mat break down remaining food and feces. 3. Adsorption filtration,...