HCA: Hermit Crab Association

Ok. So here goes my situation. I adopted 6 crabs from a bar that does crab racing. A "rescue" if I may. So I posted on here before because of molting/habits. So one crab seemed to be digging a few days into having them. New habitat. Better molting conditions if they wanted to. I had not yet set up a...

Yea I have quite a few extra shells in the cage. I have had problems in the past few days of this one crab being a bully. But I relocated the molting crab and he has dug way down already. Also adding the sand to the main tank helped too because I believe another crab my smallest one dig down to molt...

Had a true horror story last night. One of my crabs who is more of a bully was picking on the burying crab and I woke up to him crying so I moved him away. Woke up again to the same thing and I moved him once again. The third time I woke up and my burying crab had abandoned his shell and I found him...

So should I build it up around him? And avoid covering him any more then he is

So if I got more sand how could I add it for him without bothering him or hurting him

My other concern is when I bought more sand it still wasn't 6 inches deep. (It's about 2.5 inches on one side and about 1.5-2 inches on the side with the food and water,which is the side he is on) It almost sounds like he's reached the bottom and is still trying to dig. Is that dangerious if he does...

So I just got my hermies a few days ago. Yesterday o went out and bought more sand for them. The. Last night one started digging in the corner. He has been there all day. He got up once and got water then went right back to digging. i do not have an ISO tank so I figured I would just cut off his cor...