Have you just gotten one of them?

I have boas and balls and prefer to give my boas one end of the house and the balls the other end. Boas can be asymptomatic carriers of IBD for a long time and so I feel that a lengthy QT is prudent~ even though I got my boas from very respected breeders.

I would not ever entertain the notion of housing these two species together; but that's just me