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					Originally Posted by  kien
					 
				 
				...  
This is a "skyberry" stag which is normally a baby blue that had completely browned out during the event.  As you can see it has regained much of its colour.  ... 
			
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 Interesting that one coral "browned out" while others were dying off.
Browning is a typical sign of high nutrients, isn't it? 
Perhaps the mucus secretion from your LPS and soft corals had increased suddenly for some reason leading to a high level of dissolved organics, plus some added chemical warfare happening at the same time.
Were you adding any corals shortly before that "event" or fragging anything?
Mitch