Sorry for the double post but I just want people to see the update. My sand boa was in a plastic tub with a (small) water bowl 24/7. Someone on another site told me that this might be making his humidity too high, and the high humidity is causing the issue. I'd like to keep him in a plastic tub if possible. Is it okay to offer him water a couple times a week...?

Ideally I would cut a big window off the plastic lid and replace it with wire mesh, but I have no idea how to do that. Any advice from handier people would be appreciated.