I've manage to get most of the sand out of his shell, but I need to get the rest out. I need to do this in a way so I don't stress him out more than I already have though. Any ideas? I also have been able to feed him some peanut butter and honey, and he's been eating it. He's currently sitting in the coconut hide that hangs from the glass (it's a bird hide, lol) where it's semi-dark. He's away from the other crabs (only two others up currently) and seems to be okay for now. I'm going to try and figure out a more permanent situation to keep him isolated in the tank since I don't have the means to set up an iso, but for now that's where he is.
Beyond having to hand feed and water him and keep him dark, isolated and quiet, what else do I need to do? I've never had a situation like this before, but I have read about it on here. What are the chances of him pulling through? I'm really quite upset right now, so any words of encouragement would help greatly

Oh, and I know I haven't posted here in a while (life is crazy) but tank conditions are just where they need to be, plenty of sub, fresh and salt water, all natural foods, etc. There was no foreseeable reason why this should have happened, but they've all been digging and a stumble-upon while he was molting is what I'm thinking. Don't know for sure but that's my theory. Definitely unexpected and very stressful. Thanks for any help you guys can give!