Hagen Bio-Max Insert for AquaClear 30/150

AquaClear 30 BioMax Filter Insert provides an optimal environment for beneficial bacteria growth. Reducing ammonia and nitrite levels, it increases biological filtration efficiency by 30%. Exclusively designed for the AquaClear 30 Power Filter, the insert is safe for fresh and saltwater aquariums. Net Weight: 2.3 oz (65 g).