I would usually say wrasse but the size of tank i would recommend asking more experienced users on flatworm exit. I have never  used it but hear it works well. I would highly recommend dipping everything you add new to your tank and if possible to remove any corals now give them a good dip. 
		
	
		
		
		
		
			
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				360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras
 360 Reef Tank 
			 
		
		
		
		
	
		
		
	
	
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