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Re: [APD] Re: CO2 Absorption
Bill D wrote:
BTW, the chart shows that my tap water, from a well with a KH of 7+ and a pHUmm, either you aren't reading the chart right, or a KH 7+ means means
something MUCH MUCH MUCH higher than 7.
of 7.7 is, well, off the charts. Could the chart have been developed from
experience with a planted tank or from raw water, I wonder.
A pH of 7.7, with a KH of 7 gives a CO2 level of 4ppm.....
But no, the chart isn't based on any measurements from a tank, etc.
It's based on a rather simple formula
CO2 (in PPM) = 3 * KH * 10 to the (7-pH) power....
In either event, I wonder how much CO2 would be produced by respiration in aNot a significant amount. The rate that CO2 is produced by biological
processes is slow enough that any "excess" CO2 will just dissipate into
the air. The amount of CO2 that dissolves into or out of the water
from the air has a far more significant role in the CO2 level.
"typical" planted tank with fish and other organisms.
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