Quickly removes harmful elements such as ammonia, nitrite, hydrogen sulfur and heavy metals from water. In addition, the filter prevents the growth of mold and algae. This filter also has excellent visible dirt absorption capability along with pH stabilization. Scientifically proven as a better water purification medium Can quickly nitrite bacteria, purify water, and inhibit algae growth Increase the amount of dissolved oxygen in the water Stabilize water PH, keep water quality clear Suitable for both freshwater and saltwater (marine) environments.