I have two T8s divided in half. That half is plenty for a full grown ball python. It keeps the heat and humidity correct without me even trying. I have radiant heat panels on either side of the dividers to supply my heat. Although, honestly it's a waste of an enclosure to have the BPs in them because you'll see the decorations and that's it since they hide all the time. I have my boa in one T8 and she's much more interesting and pretty much always out. But if you're positively sure you won't be having a collection of them it's a decent choice for 2 ball pythons.