Seachem Tidal 35 Foam
Replacement Foam for the Seachem Tidal 35 Filter. 2 Pack. The Foam Filter Sponge acts as mechanical filtration, trapping detritus and other large particulates. It is your first stage of filtration, and its use will help extend the life of chemical filtration media. Every Tidal filter comes with one Foam Filter Sponge to get you started.