The Planted Tank Forum - View Single Post - Activated carbon n Ferts?
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post #3 of (permalink) Old 02-22-2013, 02:50 PM
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Join Date: May 2004
Location: Chicago, IL
Posts: 296
really? i thought that the carbon at least lowered the nitrates. you could be right but I never used carbon because of the fertilizer issues and now I'm hearing I could have kept the carbon in
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