Get a flat bottom, wide, ceramic water bowl. He will end up flipping the bowl you have. They are much stronger than a ball and like to throw their weight around which will make that water bowl into a big mess in a hurry.

You can use hides or just deep mulch. I give my young ones one hide and a pile of cypress mulch. The mulch helps humidity and gives them a second hide.

My bloods have all turned out pretty calm but they are very vocal huffing and puffing all the time.