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Dropping KH

To: "'aquatic-plants at actwin_com'" <aquatic-plants at actwin_com>
Subject: Dropping KH
From: "Rubin, Michael" <mrubin at visa_com>
Date: Mon, 16 Aug 1999 08:34:36 -0700

Hi folks,

I've been seeing drop in KH recently, sometimes as much as 1/2 degree in a
24 hour period.  I've also seen a commensurate drop in GH at roughly half
the rate of the KH drop.  I had been mitigating (successfully) with
bicarbonate but have switched to CaCO3.

Has anyone seen this before or have an idea what might be causing it?

*	50 gallon,  Fluorite, CO2 injection
*	2.2w/gal PC fluorescents 10-hour photoperiod
*	target levels: 4.0 dKH, 3.0 dGH, 6.8 pH

--------------------------------
michael rubin 
michael at rubinworld_com
mrubin at visa_com

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