[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [APD] CO2 measurement
>Date: Thu, 02 Mar 2006 17:49:04 -0600
>From: Barry Anderberg apd at swoobs_org
>
>snip
>
>My city water report says KH is due only to bicarbonate, and that the KH
>is 18. AP test kit confirms this value.
>snip
>
Are you, by any chance, confusing KH in mg/L (i.e. ppm) with KH in degrees?
I ask because my water department reports KH in mg/L.
If your reading of 18 is actually in mg/L or ppm, then the KH in degrees is
only about 1. The formula and table use KH in degrees. If that is the
case, at a pH of 6.8, your CO2 would be only 2.4 ppm.
John T. Fitch
www.fitchfamily.com/aquarium.html
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo/aquatic-plants