The Planted Tank Forum - View Single Post - 30ppm CO2 (rusty brain)
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Old 01-23-2013, 09:26 PM   #7
tranquillus
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Thank you everyone for your replies. So if I am correctly understanding what has been said, my tap water's readings of pH 7 and KH 10 do *not* mean I already have 30 ppm CO2.

If I inject CO2 into water with these parameters, won't my pH drop?

Also, if I can't use the pH/KH/CO2 tables to calculate CO2 ppm, how would I go about determining this?
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