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Old 11/09/2017, 01:59 PM   #5
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Join Date: Sep 2003
Location: North Carolina
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Originally Posted by tmz View Post
Skimming does not remove PO4 or NO3 directly; but, does remove organics which might otherwise decay in the tank adding inorganic N and P as a result.
Skimming will never reduce your current nitrate or phosphate levels.. But it can keep them from going higher...

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