not yet they wont harm anything for now see what there doing could be feeding tenticles although there usually clear i have had colonies or mushrooms when stressed go brown u may lose a few pylops but kep an eye on them 
		
	
		
		
		
		
			
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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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