[APD] CO2 Levels

["Bill D" <billinet at comcast_net>]

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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