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					Originally Posted by  Lance
					 
				 
				Sounds a little scary: injecting Draino into the tank; but if it works, What the Hey! 
Nice to see the cyano gone.    
			
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 LOL yeah I guess thats what it is essentially. Works like a hot damn tho. I just siphoned up the precipitate after and did my regular waterchange. The tank looks just fine.  I wonder what the chemical reaction is though to produce the precipitate?