First of all, Samara's info couldn't be further from being correct so do yourself a favor an ignore everything he said...

People having been studying animals for a LONG time genius and just because its online doesn't mean it's not real information. Just because he didn't do the study himself doesn't mean anything. There are scientist with PHD's I'm sure that would back us all up here, and you would feel awful stupid. Let me ask you this. Why would an animal that is preyed on quite a bit travel the African landscape trying to get eaten? Well here are they facts...they don't! It makes sense too...They cram themselves into small spaces to stay hidden from predators only coming out to find a meal, to mate, or to find a new hiding spot. Not exploring. They don't have the proper brain to even comprehend exploring for the sake of it. The only thing there worried about is their survival. Not how big their tank is...gimme a break.

Get yourself a 10 gallon tank, and put some background around it. I use black paper. Gives it a more secure feel I think. Aquariums can leave snakes feeling exposed which causes them to stop feeding.
Thermostat
UTH-under the tank heater
thermometer with probe/normal thermometer (ambient temps)
Cypress Mulch
Small Hide

That tank isn't the best for a BP to be honest. There beautiful enclosures for certain species but not ball's. Especially this size. Maybe use when hes a bit bigger? Also tubs work great! Cheap and easy to clean.