I am very new to hermit crabs we have 4. We just purchased them at a store called earthbound very good place to buy them around here. I am working on the aquarium for them so for now I have them in 2 diffrent terriarum boxes with sand and water and toys etc, this is not going to be their permanent home hopefully only until this weekend anyway we got 2 of them about 4 nights ago and one of them had already switched shells yesterday morning but today when I got to looking I cannot find blueberry in the new shell or in any of the other shells I have for them should I go digging for blueberry I do not even see her anywhere or could she be molting? Do the come complety out of the shell when they molt? Please help I am not sure what to do?