Aquaclear 50 Biomax, Replacement Filter Media For Aquariums Up To 50 Gallons, A1372

Product Description The AquaClear 50 BioMax Filter Insert provides an optimal environment for the colonization and growth of beneficial bacteria which is essential for effective biological filtration and water purification. BioMax’s complex bio-ring pore structure allows beneficial toxin-reducing bacteria to thrive. By reducing toxins such as ammonia and nitrite BioMax effectively increases biological filtration efficiency by 30%.