So last night I went to bed and my crabs were all out and happy including my jumbo named BIg Ben! I wake up this morning and he has covered himself with the water bowls and is underground. I only have at the most 3 inches in the deepest part of my tank for him to bury himself, is this enough? Also should I remove the water bowls and cover him with a 2 liter? Please Help Im freakin cuz I've never had one this big molt before!