So I just recently acquired a new 30 gallon and need some ideas for stocking it. Maybe. I already have 3 fish. I have an Electric Blue Cichlid, a Featherfin Catfish, as well as a silver plecostomus all of which are under 3 inches. The cichlid and catfish are more active and very territorial (especially my catfish). Anyways, I was wondering if there are any compatible additions or if they should remain as is. Thanks!!!