'm Surprised. According to various assessments, I had my concerns. Well, they are dispelled. The pond was quickly clear up on the ground. Then you could see how the mud was getting less. At the end are great Parts of the pond liner to see. The filamentous algae will not disappear by. Does it need to remove more. But is manageable and not very expensive. Parts, the dead fall to the ground, are rapidly degraded. Now does not mean that the sludge at the lowest point dissolves completely. No, the one has to suck his hand, because the layer is too strong already. In but rejoice my water lilies as a nutrient supplier. Green algae are so far no more Theme. I've been watching on. The summer will then show how safe the kleien organisms do their work. Logically, every now and then I Enlarge her family, and pour a little. Light can not man the pond clean. One must not forget, however, that to test water. I wish all pond lovers also this success.