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Unread 11/10/2017, 04:41 PM   #5
bertoni
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Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
The denitrator will consume alkalinity. See section 7 in this article:

http://www.advancedaquarist.com/2003/8/chemistry

A drop of 3 dKH in a week seems like a lot, but that might be what's happening. Is that 3 dKH number correct?


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