HCA: Hermit Crab Association

How do I know when it's safe to put my crabs back in together? The one that was molting isn't too active, I did see him move around a little but he is staying in the same spot most of the time. I feel like the one I put in the new tank keeps destroying it.

Thank you for all the information! I'm keeping them isolated until the one who is molting is acting normal again!

Hello, im new to hermit crabs therefor new to this website! Im hoping someone can send some knowledge over this way! I have two hermit crabs, durring tank maintenance i accidentally dug around a crab and wanted to make sure he was still alive, when i picked him up he had his dead skin hanging and he...