AquaClear 50 BioMax Filter Insert - Aquarium Biological Filter Media for AquaClear 50 & 200 Filters

AquaClear 50 BioMax Filter Insert provides an optimal environment for beneficial bacteria growth. It works to reduce ammonia and nitrite levels in your tank and it increases biological filtration efficiency by 30 percent.The AquaClear 50 BioMax Filter Insert is made exclusively for the AquaClear 50 Power Filter.