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All hairy crabs = bad news???

Subject: All hairy crabs = bad news???
by Jason Peters on 5/5/2010 20:02:36

Just got my live rock and there is a hairy crab. Reading the forum most people banish them to the sump. My one looks green and has hairy legs

my question is are they always bad and why?

I have a marisys 240 currently so don't have sump

thanks in advance