You are comming off as really rude with all of the comments on this thread. Stop being so defensive. I don't even have a corn and I don't think that I would EVER keep two snakes together for an extended period of time. You said that you have never had any dominance issues? Have you ever caught one of your snakes coiled on another? That is one dominating the other. You may have kept snakes for longer than I have but the fact is more than one snake in a cage especially ones of different ages does not sound at all like a good idea.
I would say if you are going to get these corns to first get seperate tubs. It will reduce stress on the animals. snakes don't make snakie friends. They will all fight for dominace and that would be alot of stress on your smaller snakes.. Thank you.