Why is my bearded dragon to bite the rocks in your tank? Is it safe for them?

Are they in the crowd? They can only to rub against them to remove the skin. What size rocks? If you use the rocks as substrate it needs to move immediately, may end up swallowing it that can cause things to back up and die. If you are young, go to a newspaper, if you do not use sand.

Turbo and Nitro