I was looking in my 55 gallon tank last night and I all of a sudden have a BIG hermit crab in there!! He is wearing one of my larger turbo snails shell, that he must have killed it for. I was shocked!! I have never seen him before! All I can think is that he was sold to me as a small zebra or blue legged hermit, and hid out somewhere, and grew and grew!! He is obviously not a small reef hermit. He does have blueish legs and a big white left handed claw. I will try to get a pic to ID him with you all if I can find him again. I was thinking I maybe should take him out of there, so he doesn't cause trouble with the snails, softies and other little crabs, what do you all think??