I have no right pond, but a waterscape of several left in the ground vats, which are operated without filters. Due to the many reviews touting these bacteria as a charm, I wanted my water tanks also like to do something good, but was sorely unsure whether the bacteria only work with filter sponges and how they have to be dosed. Now I can get it a try. It seems to work well with pure application in the pond. I have the bacteria dosed quite generous (even this is difficult without guidance) and it seems without a filter naturally to take considerably longer until a positive effect begins. But it seems to work. Details will be the long-term test, especially when it gets warmer show. So far I am satisfied, but I hold a manual already necessary, finally wants to know exactly what is tipped into the pond and how much is needed and how the application is to take place with and without filters. At least one Web site for this purpose would be nice.
