Well there is always somewhat of a risk with any crab IMHO.  If it helps I used to have one of these.  He was my favorite hermit, and he would eat bryopsis which I thought was great.  Sadly that particular crab got foully murdered. (I think by either a bad hitcher crab or the red scarlet I used to have) 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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