The natural choice for a clean pond!Green clouds and cloudy water often cause problems for pond owners. With Pond Cleaner you bind phosphate in the water and remove nutrients. The result: a clear pond without films and streaks.Tips:At high temperatures and with many fish, there is a risk of oxygen deficiency. Ensure aeration or carry out a partial water change. Avoid water problems by adding a monthly dose of Pond Cleaner to the pond water. Keep the water hardness at an optimum level with GH Plus. An ideal GH value is between 8 and 12° DH. The active ingredient in Pond Cleaner is lanthanum (granulated).Product details:Contains lanthanum (granulated). Binds phosphate and removes nutrients. Eliminates green clouds and water turbidity. Keeps the pond free of films and streaks.