CrystalClear Polish AC 15 lb [CC090-15]

CrystalClear Polish AC is bituminous coal exposed to extreme heat, which activates the carbon, giving it potent absorbing powers. The carbon has billions of pores that act as hundreds of sponges soaking in many pond pollutants such as tannins, ammonia, nitrite, and nitrate. The result is a polished pond environment.