Super Activated Carbon Large Pouch Be21

API® SUPER ACTIVATED CARBON makes your aquarium crystal clear with its premium-grade, high porosity carbon for maximum absorption and minimal aquarium maintenance, removing dissolved organics, colors, toxins, and fish remedies. This product will not raise phosphate levels in your tank, and will not affect pH. It comes in a convenient, easy-to-use pouch and is compatible with freshwater and saltwater aquariums.