The dirty water tank is harmful to the life of your farm animals.Say goodbye to the trouble of constantly changing the cloudy water tank.Water purifier cubes are ultra absorption activated carbon blocks which can maintain clean drinking water for your farm animals. Water purifier cubes are made of carbon blocks ultra-absorbent honeycomb active which can effectively help filter out dirt, cloudiness, odor, etc. in the trough.Solid composition, no powder, no impurities and does not cause black water. Water Purifier Cubes are specially designed to provide clean water to all animals including fish and the reptiles.It is safe for animals only. Just put it in the tank.Just wash it with soap and warm water, and you can put it back in the water tank.Wash the cubes with lukewarm water before use.These cubes are durable with maintenance but it is advisable to change them every 6 months to guarantee clean drinking water for the animals.One cube works for 150L.Depending on the size of the tank, a