The pool was set up by us in May of 2010. It may be run as fast because of the live bacteria of Söll. After 14 days we were able to use some Oto`s. Yesterday the Rotkopfsalmer came into the pool. They are vital, swim together in shoals through the pool and have an excellent coloration. The Rufous come on Saturday. We recognize that the number must be reduced by 2 once a couple has herauskristalisiert. They are still adolescent, and can not, unfortunately, different.