nothing touch it that I can see.  I checked for pyramid snails and other anoyance but nothing that I could see.  The only thing that I cannot control are those amphipods that are anoying it at night.   
  
When ever I go to the bathroom at night I go check on the clams and I chase the amphipods away by blowing them off the clams.  I don't know if this has anything to do with the clam condition. 
  
Once I had a cleaner wrasse that took many bites out of the clams and it regrew everything missing piece of its mantle.  Now I cannot even see any bite marks.  It's like the mantle is just shriveling on that part. 
		
	
		
		
		
		
			
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More fish die from human stupidity than any other disease...
			 
		
		
		
		
	
		
		
	
	
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