I keep my guys in tubs except my corn snake he's in a tank cause otherwise I feel he gets a little too cozy. I handle my snakes every day, I only have 5 and they have not changed in personality. If anything they really seemed to be a whole lot more relaxed. I originally got a normal poss het axanthic, pastel, and granite all in one tank. This woman said her land lord asked to get rid of some because she had too many. Boy was the land lord right. But anywho I took them in and they had no humidity, no water, one hide, no heat and all horrible sheds and worse tempers. I left them together for a few months while I waited for my rack system and got their health back up to snuff ( one had some mouth rot and they all were showing signs of heavy breathing). Once seperated they all relaxed a lot more and are all doing great. Always eat always happy.