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Re: [APD] CO2, water changes gas phase Vol1
Maybe it's from the Nitrogen, which makes up almost 80% of our air.
On 26/01/07, Derek Parr <derekparr at earthlink_net> wrote:
> Provided I didn't read Tom's post incorrectly, I believe he was
> accounting for that by using degassed water that had been sitting in a
> barrel for some time. Which does appear to make it reasonable to suppose
> the cause for the "pearling" comes from the atmosphere. Beyond that it
> seems open to experimentation and postulation.
> -derek parr
> Vaughn Hopkins wrote:
> > On Jan 26, 2007, at 12:35 PM, Liz Wilhite wrote:
> >> My tanks pearl like crazy after a water change, even when they
> >> contain no
> >> plants.
> > "Pearling" after water changes, with no plants, is a horse of a
> > different color. I'm assuming you are referring to the air bubbles
> > that appear on the aquarium glass when a big water change is made.
> > Those bubbles just appear and remain there until they break loose and
> > disappear. Real pearling will involve streams of bubbles coming from
> > plants, or, if the glass "pearled" there would be streams of bubbles
> > coming off the glass walls.
> > Vaughn
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