Premium biological and mechanical filtration media designed specifically for the Fluval 206, 207 canister filters
Bio-Foam Max: 2-in-1 biological and mechanical filtration media with rippled surface pattern offers 30% more area for increased debris and waste capture
Bio-Foam: mechanical filtration media precision cut (no gaps) to prevent debris bypass and complex foam structure maintains consistent water flow
Bio-Foam+: mechanical and biological filtration media with large porous surface that supports expansive beneficial biological activity
6-month supply for use in freshwater and saltwater aquariums