SW Hermit Crabs - Same as pet store kind?


Active Member
I have three hermits who have gotten a little too big for my tank. Two are Scarlet, one is Blue Legged.
I'm thinking about taking them out of the tank and giving them a hermit crab tank, like you can buy at Petsmart/Co.
My question is, will they survive long-term above water? Can they be kept like this, in a sand-bottom enclosure? I'll probably just feed them hermit crab food or some of the free flake I got with an old equipment purchase.