He is in a 29 gallon tank, water quality is fine. I check it often with my liquid API kit, all the fish seem fine as well, I think he is just an explorer. I have his favorite hiding spot back where he likes it and he seems fine now. I have also made sure to close all opening in the top of the tank. He is healthy, eating well and just changed his shell about a month ago. I was told by someone at my LFS
that they are just prone to escaping if there is an opening. Your thoughts on that?