Think I'm gonna have to try getting a new bowl, again this morning I found him laying underneat it. I think he just likes being squished by it. I'm thinking if I put it flat on the bottom of the tank instead of on top of the substrate he won't be able to work his way underneath it. Its one of those water bowls that sorta looks like a natural rock, its pretty heavy already but he's a strong snake. If that fails i'm gonna try the dog bowl trick and see how that goes. Thanks for the advice.