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Old 02/06/2018, 08:44 AM   #47
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Join Date: Mar 2015
Location: Glocester, RI
Posts: 3,288
A skimmer won't change nitrate levels that quickly. In fact, it won't actually change levels at all. It is there to remove organics before they add to nitrate and phosphate levels. If your nitrates are actually undetectable but you have high phosphate I'd focus on the phosphate. Need to get those two in a balance for the natural processes to work best.

My build thread:

Current Tank Info: 65 gallon mixed reef, Eshopps sump and HOB overflow, RO-110int skimmer, Reefbreeder 32" photons V1.
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