Does anyone have experience with cleaner fish (i.e. fish that eat parasites off of other fish)? I've read that orange chromides tend to clean green chromides. I'm raising hundreds if not thousands of convict cichlids, and ectoparasites are a constant worry. I don't like having to medicate often. If I could find a fish that can clean (non-breeding) convict cichlids, either in fresh or brackish water, that would be AMAZING!