AquaClear Filter Insert - Zeo-Carb 70 gallon - (5 Pack)

This potent chemical duo prevents the buildup of toxic ammonia and nitrite, producing clean and healthy aquarium aqua. A powerful combination of Activated Carbon and Ammonia Remover, the AquaClear Zeo-Carb Filter Insert effectively eliminates odors, discoloration, and impurities in freshwater aquariums