HCA: Hermit Crab Association

Hi guys. About 2 weeks ago my crab Mr. Krabs went under. A couple of days after he went under the tank started to have a chemically smell. I did some research and saw that this may be because he is molting I’m not sure though. Anyways, I want to say like maybe a couple days to a week later I found a crab leg but it looks hollow (I’ll attach it). It has to be his because my other crab isn’t missing a leg. Do you think he’s molting? He’s still under and it’s been about 2 weeks I think.


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Where did you find the leg? On the surface?
How big is your tank? How deep is your substrate? Wondering if the top side crab dug it up?

curlysister wrote:Where did you find the leg? On the surface?
How big is your tank? How deep is your substrate? Wondering if the top side crab dug it up?

Yes it was on the surface. My substrate it about 3-4 inches deep. My crabs aren’t that big they can completely burry themselves in the sand and out the sand on top of them. Not sure if I mentioned it but the leg does look hollow.


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If it's hollow, it is from a molt. It could be left over from a previous molt. If the top side crab dug up the crab that is currently underground, there would be a lot more 'parts' found.