dead crabs?

[blakeoe]

just bought a sally lightfoot crab and a porcelin (sp) crab about 3 weeks ago and both died within the last 3 days... Any ideas on why or what i should check first? Also my new banded coral shrimp is molting like once a week? Anyone have any ideas?

 

[romunov]

What changes to the system have you made?

 

[blakeoe]

other than adding a few softie frags here and their and a few shrimp and crabs? Nothing.... System is about 3 yrs old and i just moved it about 5 months ago

 

[ed4]

I don't mean to be 2nd guessing, but perhaps you found their molted shells?

Of course, this is assuming that your tank has the optimal water parameters...