Pending!!!
They were fine with plants, not sure about bottom feeders since he was in his own tank. They are generally fine with other fish as long as the fish will not eat them. However depending on tank size there may be fights with bottom feeders. It is about 2-2.5" long, near max size. I am unsure of age. If you are still interested, I'll let you know if something falls through with the person wanting it.