Yes, they are all in the same tank. I never had any problems with my last RBP shredding fins, but I will keep an open eye for them. I also know the glutoney of RTCs. I hav actually been drawing up plans for the stock tank they will be going into. Well, the RTC is going into, I am trying to track down a 120 (4x2x2) for the Pbass grow out as I hate the 18" width of my 125. I will keep them there until they are about 15" or so...hopefully by then they won't be RTC food. I am posting my pond build thread in the indoor pond section, so if you get a chance go check it out. As for now they are taking bloodworms, I will have to pick up some feeders when they get a new shipment in, as they don't relly eat to many of the bloodworms and just spit everything else out. However, my RTC being the garbage disposal they are is accepting everything under the sun!