Ok, as a person who has kept two Ball Pythons together I would like to say a few things. You might think at first that your ball pythons are fine. eating well, and active healthy animals. WRONG, being housed together is very stressful on Ball Pythons. You may have noticed your snakes coiling around eachother? That's not a sign of cuddling or anything like that, that's one snake asserting dominance over another.
Also, a few health issues:
If there's mites in the ONE cage, all th snakes get mites.
If one of the snakes has parasites and you dont know it all the snakes will get them.
How are you going to know which stool is which so you can tell which snake has parasites.
They have been known to be CANNIBILISTIC!!
Those are just a few reasons why you shouldn't keep Ball Pythons together.