A special formulation which removes toxic substances, discolorations odors and deadly ammonia. Carbo-Z is a special formulation of the two most essential elements necessary to maintain a healthy aquarium. Carbo-black granules are a highly activated filter carbon. This carbon removes toxic organic matter from fish waste and food, which causes foul odors and cloudy water. Z- white granules are a specific type of Zeolite uniquely suited to the removal of deadly ammonia. Regular use of Loving Pets Carbo-Z in aquariums provides increased efficiency of filtration, helps keep water odor free, and prevents cloudiness.