Re: NANFA-- The dissolved oxygen thang

Todd Crail (
Mon, 20 Jan 2003 15:58:39 -0500

Prolly could do this with Mason jars on a nice 75 degree day. Or maybe at
any temp. Hmmm...

----- Original Message -----
From: "Mark" <>
To: <>
Sent: Monday, January 20, 2003 2:34 PM
Subject: Re: NANFA-- The dissolved oxygen thang

> I know CO2 level can change with respirating animals in the room. I used
> to do indoor air quality work and used a CO2 meter. I think normal
> levels were something like 300 ppm. I sometimes measured indoors levels
> over 1000 ppm. I'm still not sure those kinds of changes would be
> significant as far as fish comfort in the water. I would like to see an
> experiment with two identical tank set ups, one with oxygen-depleted
> air and one with unaltered outdoor air that is at the same temp as the
> indoor air. Then take DO readings with a good meter.
> At 6:28 AM -0500 1/20/03, geoff wrote:
> >lower solvent temps -> increased solubility of gases
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