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Re: [APD] Interesting idea

Dennis Dietz wrote:
> so, for fun again:
> ppm CO2= 3*kH*10exp(7-pH)
> = 3*5*10exp(1.1)
> =188.8

Correct. If you really have a KH of 5 degrees and a pH of 5.9, then your 
CO2 is 189ppm (assuming you're not filtering with peat, etc.).

Jerry Baker
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