The Planted Tank Forum - View Single Post - Calculating Co2 levels
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Old 01-17-2003, 09:54 PM   #2
SNPiccolo5
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3.6 x KH (in degrees) x 10^(7-pH) is the formula to use. Example pH=7, KH=5. 3.6 x 5 x 10 ^ (7-7) so you would have about 17 ppm CO2.

-Tim
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