What Sauzo said... I keep my Boas and Ball Pythons in the same rack with identical temperatures and humidity. Someone once told me that Boas "can" pass IBD (Inclusion Body Disease) on to Ball Pythons. I'm honestly not sure how true that is, but just to be safe I am always sure to use hand sanitizer when switching back and forth between handling different species. It's my understanding that Ball Pythons can contract IBD from other Ball Pythons, too. If that is the case, I don't see what the difference is. Maybe someone else here could clear that up?