"Margolis" wrote in message
...
" Fluff wrote in message
...
- KH and pH (those two allow you to determine CO2 levels)

How does one determine CO2 levels with the KH & PH values? Thanks in
advance, I'm very curious about this.


one thing to remember about this though is that these calculations are only
accurate if you are adding co2 to the tank. If you are not adding extra co2
then these charts and calculations don't work well

Huh? Why would the table not be accurate when not adding CO2? The ratio
of pH/KH/CO2 is fixed by physical processes, whether CO2 is being added
or not. The only thing that can throw this out, as far as I know, is if the
water
contains substantial amounts of non-carbonate buffer, such as phosphate. But
that is not normally the case. Otherwise, the table is accurate, whether you
inject CO2 or not.

Cheers,

Michi.

--
Michi Henning Ph: +61 4 1118-2700
ZeroC, Inc. http://www.zeroc.com