I can't say for sure that this worm preyed on small fish at night.  However all of my small gobies dissappeared over time.  Also, something took a bite out of my baby Hippo tang earlier this year.  20% of its body was completely bitten off overnight and I don't think it was from one of my other fishes.  I didn't think the tang would survive but given how healthy it was from the start, it survived and has healed 100%.  I wish I had taken pictures to show the before and after of the fish to see how amazing the bite and the recovery was.  I don't know what else in the tank could have taken that bite.  I have seen this worm carry rocks around its cave like they were nothing so it is not hard to imagine this guy grabbing a sleeping fish.  I have also lost all of my ricordia and zoas.  I feel more confident about buying new corals and gobies now.  If I buy a new Ricordia and zoas and they stop getting eaten, and if I buy new gobies and they stop dissappearing then I'm pointing my finger at the worm. 
		
	
		
		
		
		
		
		
						  
				
				Last edited by Samw; 03-23-2009 at 07:24 PM.
				
				
			
		
		
	
		
		
	
	
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