I posted a few days ago about my little crab, Robby. He kept burrying himself, for a day or so at a time. I figured he was going to molt. SO, I put him in a separate tank, with all the luxeries of the main tank. He burried himself yesterday, only half way. I thought, ok, here he goes. Today he's been out roaming around, checking out shells, playing the the water, etc. He's still out now. Should I still leave him in there, maybe he's still preparing to molt?