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					Originally Posted by  xenon
					 
				 
				Why not dose mag? 
 
Are you using a salt for water changes that is high in mag? 
			
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 Well, high enough it seems.  I use DD H2Ocean and Reef Crystals on rotation and the RC alone seems to have enough mag so long as I keep up with my water changes (every two weeks).  My mag has traditionally not depleted fast enough to warrant dosing.