question

Question
I have a question I had a hermit crab I bought from a pet store I brought it home as soon as I put in in his tank he changed shells then he ate for a solid week none stop then he withdrew into his shell and never came out He died
Can u tell me what might have happen to cause him to die?
My other one wich is half the size of the one that died is still doing really well

Thank you for your time?

Answer
What made you think that he died? I know this seems like a wierd question but sometimes they appear dead but they are actually molting.

Another thing that might help me give you the best answer is if you could tell me what your humidity and temperature in your tank were.