Well .... no, but the problem is, to me a clam looks perfectly healthy one day but the next day may be two empty shells.  So, when they don't attach (and if they should attach that is ... I know some species prefer to be in the sand, like derasas and I think squamosas too) then I get nervous. 
		
	
		
		
		
		
			
				__________________ 
				 -- Tony 
 My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills.  Whee! 
 
			 
		
		
		
		
	
		
		
	
	
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