Well, I'm not sure what the experts will say (and they can give you better advice on the matter than me!), but I keep my RTBs in a different room than I keep my other snakes. From what I've read, IBD can lay dormant or mild enough that it is not noticed for a looooong time. By that, I mean months to years. I didn't want to take the chance of Diablo or Aphrodite accidentally infecting my two BPs somewhere down the road. IBD in a BP can be fatal, but the boas handle it a little better.

It is definitely a good idea to quarantine, and I would say not less than 2 to 3 weeks, but to be safe, maybe even a month? Like I said, the experts will be able to give you a better estimate, but I figured since I was here, I'd put my two cents in.