New crab won't move?

[WacklieCacklie]

So I got three hermit crabs about two and a half weeks ago. Two of them, Rikki and Tavi, are doing really well. Both eating and fairly active. My third one isn't active at all though.
Tikki is her name and the first two nights she was very active, climbing all around the cage. Then she just stopped and has been hiding ever since. I'm awake most of the night and their cage is close to my bed so I check up on them periodically throughout the night and I still haven't seen her move.
And recently I've noticed a part of her leg is missing. Should I be worried? Is there anything I can do to help her or should I just wait for her to get more comfortable in her new home?
The cage is a 27 gallon bin with 6-7" of substrate. The temp and humidity are as they should be as well.

[aussieJJDude]

Id just keep an eye on her and wait. Does the tank smell?

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[WacklieCacklie]

It just smells like wet dirt. Not fishy at all so I know she's still alive.

[Happyhermiehome]

Maybe put a piece of stinky yummy food in front of the hidey and see if he/she sneaks out in the night for a nibble?...she's prob just chilling/destressing.

[WacklieCacklie]

She switched hiding spots and shells last night but I'll still put some shrimp in there. It'll be a nice treat for all three of them.
Thanks for your help

[Happyhermiehome]

She switched hiding spots and shells last night but I'll still put some shrimp in there. It'll be a nice treat for all three of them.
Thanks for your help

YW!