I don't believe any species of snake should be housed more than one to an enclosure except briefly for breeding purposes. I have several reasons for that. Some folks get up in arms about this, or ask why I emphasize this on the caresheet when their snakes seem to get along just fine. I think it would be good to post an explanation here, so everyone knows where I'm coming from. There's multiple reasons I'm for keeping each snake in their own individual enclosure.

First, if one snake gets sick then the chances of the other getting sick is lessened considerably. If someone regurges when you're not home, or has something wrong with his fecal droppings, you'll know for sure which one it was. If they're sharing an enclosure, you can never be sure and have to pay to take 2 or 3 snakes to the vet instead of one! And buying another enclosure is generally way cheaper than vet bills, believe you me. ;)

Second, snakes are solitary creatures by nature. They don't get lonely or like company. What may look like cuddling together is actually dominance behavior and stresses the snakes, which makes them more susceptible to illness and going off feed, etc. They compete for the "best" spots by piling on top of each other. So even though they might not be biting each other they're still fighting in a way. Usually one snake ends up being the dominant and more healthy one, and the other is the more submissive and ultimately miserable snake. And I like my snakes to be as happy and stress free as possible, no matter how cute the piling can be.

And third, but least likely, is the possibility of cannibalism. I've been amazed at how that can happen even with snakes like corns or ball pythons, snakes you'd never expect to eat each other. It's rare, but it can happen, and I'm an alarmist by nature and prefer to play it safe.

So, even if you gave them a whole lot of room to run around in (and VBBs are very active, they would take full advantage of it!) you'd likely still find them often in one corner sulking together over who's the top snake, or find you have to take all of them to the vet over one illness, or worst case scenario... find yourself with one very fat snake with somebody else missing.

If something *could* be bad for my snakes, I prefer to avoid the risk altogether. It's safer and easier in the longrun.

Happy herping!