Tetra Crystal Water Water Aquarium Cleaning Treatment is a highly effective water clarifier designed to quickly and safely clear cloudy aquarium water. This advanced formula works by binding tiny particles that cause cloudiness, making them easier to remove through your filter. Suitable for both freshwater and marine aquariums, Tetra CrystalWater is safe for fish, plants, and beneficial bacteria, ensuring a clean and clear aquatic environment without disrupting the delicate balance of your tank.