Re: [APD] CO2 Levels

["S. Hieber" <shieber at yahoo_com>]

Really, it the amount of CO2 to which the water is exposed,
and the lower the water temp the higher the vapor pressure
so at lower temps the water can hold more CO2.

I believe that exposed to outside air, water will stabilize
with a CO2 level of about 1 or 2, but indoors where the CO2
inthe air is higher, the amount inthe ater can be higher. 
You might measure 4 or 5 ppm in a aquarium without CO2
injection.

sh
--- Bill D <billinet at comcast_net> wrote:

> If a sample of water is exposed to the air for 24 hours,
> what will be the
> level of CO2 in it at after that?
> 
> According to an internet search, the CO2 chart at The
> Krib (Booth) says 2 -
> 5 ppm, Booth and Gadd say 2 - 4,
> Huebert and Walstad say .5, and Booth again (via a quote)
> says .1.
> 
> Do pH, GH, or any other factors (within a normal
> range)have any affect on
> the CO2 level?
> 
> And, in a well-planted aquarium well stocked with fish,
> without CO2
> injection, how much would that level
> rise due to normal biological factors?
> 
> Thanks.
> 
> Bill
> 
> Also, in an aquarium without
> 
> 
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