s.leggetter  wrote:
>this time. This leads me to ask if anyone knows a) how do you know that a
>crab is going to moult (he didn't seem to hide away at all), 

In shrimp (sorry, don't have any crab experience, but they are also
crustaceans, right?), there is a slight coloration change right before 
moulting.

>b) in what form
>do you give the calcium? 

Your fish store probably sells specialized crab food. Ask them for advise.
Don't know if they'll eat it, but egg shells are a great source of calcium.

>c) will the other one do the same and 

Probably.

>d) will we
>have done any damage by removing the shell.

Probably not.

Cheers.


-- 
Victor M. Martinez
martiv{at}FAKE.che.utexas.edu
http://www.che.utexas.edu/~martiv
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