AquaClear 30 Zeo-Carb Replacement Filters (3 Pack)

AquaClear 30 Zeo-Carb Insert removes and controls harmful ammonia and is ideal for new or heavily populated aquariums. It works to absorb liquefied impurities and reduce stress on fish. The AquaClear 30 Zeo-Carb Insert has immense surface area for beneficial bacteria to populate and the intricate pore structure removes chlorine and heavy metals. This insert combines Activated Carbon and Ammonia Remover to remove odors, discoloration and impurities in freshwater aquariums. The insert prevents the build up of toxic ammonia and nitrite reducing stress on fish.