Quote Originally Posted by Hugsplox View Post
I think you’ll likely be fine as well. I have my male in a 4x2 and he makes use of that entire enclosure, but that doesn’t mean he wouldn’t be just as comfortable in something smaller. I’d say let him live his best life in the 3x2 you have, it’ll take him some time to outgrow it if he does, and you can always upgrade him if needed. Use that 3x2 for a new snake

I was actually thinking of getting a new snake soon and possibly housing it in the 3x2x2 enclosure while my current BP gets upgraded to a 4x2x2, so you read my mind there haha. I haven't 100% made up my mind on getting the new snake right now, but I'm thinking down the road I will probably want to upgrade my boy to a 4 foot PVC anyways so the 3x2 would need to either be used by another juvenile BP once I decide to get one or I'd have to sell it.
Another argument I've heard for 4x2x2 enclosures is that they're the best size for establishing a proper heat gradient, and that smaller enclosures don't give enough space for the snake to effectively thermo-regulate. I don't know how accurate this is, but it seems like every keeper that houses their BPs in a 4x2 says their BP uses all of the space and becomes a lot more active in general - which is why I'm leaning towards eventually upgrading even if he doesn't technically "grow out" of the 3x2.