maybe when they are first born then i belive they can be housed together for a day or soo but after that i say seperate cages. and u do not need to use a light if you have a UTH (IMO) And like others have said when in blue they wont really come out of their hide. My snake does but shes stupid (I dont think she knows shes a BP) lol. But seriously you need to seperate you snakes and no offense but you said this is you first snake and this is its first shed so why did you go out and buy another one??? Please dont take offense to this i can be quite straight forward.