Crab is molting, I think?

[zylvezter]

My biggest hermit crab I think is molting. He is under the sand, my sand isn't deep enough right now so I can see where he buried himself. His friends are all by him watching him. Is this normal? How fast should they start molting? I just got him and his friends 2 days ago.

[zylvezter]

Okay, he's not molting. I'm still not sure why he was buried though. As soon as I turned off the light they started becoming active

[curlysister]

Crabs like to dig to de-stress, to molt, or just for fun LOL. You won't know which one they are doing until they maybe stay down for a while, and even then not for sure. Be sure to add more substrate when you can - they dig and stay underground when molting because they are vulnerable to other crabs. If they can't get deep enough, another crab might come across them and harm them.