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					Originally Posted by  kien
					 
				 
				Wow, I wish my sand was that clean!  That water too.  Great clarity. 
			
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 Thanks Mr !!
And that's with no carbon or gfo, and no sand cleaning.
I balanced my PO4 with the addition of liquid nitrogen from Seachem and haven't had to add any since Jan '17. At that time I pulled my reactors out of the sump. I literally use/dose nothing to remove PO4 anymore.