The ratsnake foundation www.ratsnakefoundation.org has a great care sheet writen by Sue Knight(windy) about 9 pages when printed out.Here are a few notes from it.Adult size is 30-36" daytime temps 73-77*f. night time 64-68*f.Temps over 82*f can be dentrimental or even fatal.So watch the temps in the summer.Humidity 65-75%.Mine get very stressed if handled to often and are very fast so i only handle them once a week to check them over.