Biochemical Filter Sponges
Biochemical filter cotton sponges for aquarium 100*12*2 CM
Dense hole clearance and softness, and through expert analysis is the best to cultivate good hotbed of nitrifying bacteria. On the biochemical cotton waste and feed residue, improve water quality filter clean. Best effect, reduce the fish mortality. Cleaned once a month, no blocking, no deformation, can be reused after cleaning.