Tetra Pond CrystalWater - safely and quickly removes floating particles that can cloud pond water. It effectively removes dirt particles to improve visibility into the pond and works in a matter of hours. It binds cloudiness caused by clay particles or soil, as well as cloudiness caused by organic particles, such as fish waste, uneaten food or dead plant material. It is harmless to pond environments and makes pond care easy. Improves the water quality in the pond, enhancing the well-being of fish and plants. And it is incredibly easy to administer.