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					Originally Posted by  jason604
					 
				 
				There is no aiptasa or algae around my acro so what else that I can do to see what the problem is before I start cutting off my colony's base? 
			
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 At this point it doesn't matter. It won't grow back. Cut the dead off, re-utty it into place and let it encrust the putty. It's not a lot, and it's dead skeleton.