Do Arrow Crabs molt?

[ToTaLCHaoS13]

I have had an Arrow Crab for a couple months in my reef and when I went home for lunch today I found his body sprawled out on a rock upside down. I think he is truly dead, but I was fooled by a mythrix crab one time. Anyone ever had an Arrow molt and what did the body look like (anything noticably different other than it wasn't moving...)?

 

[Travis L. Stevens]

Yes, all crustaceans molt.

 

[jgoodrich71]

All crabs have to molt. It can be difficult sometimes to tell the difference between a dead crab and a molt. Generally, look for a horizontal split at the back of the carapace. This will usually indicate a molt.