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Anabantoids and CO2
In a message dated 10/25/1999 3:58:51 AM Eastern Daylight Time,
Aquatic-Plants-Owner at actwin_com writes:
> I have Pearl Gouramis in my CO2 injected tank and they seem to do fine
> although my cover is not tight fitting. They were the only fish to survive
> a CO2 mishap and spawned soon afterward.
> > Date: Sun, 24 Oct 1999 12:22:13 +0000
> > From: "Jan Fidrmuc" <fidrmuc at united_econ.uni-bonn.de>
> > Subject: CO2 and anabantoids
> > I wonder if anyone has been using CO2 injection in tanks with
> > anabantoids (labyrinth fishes such as bettas). As some CO2 dissipated
> > out of the water, the anabantoids may be unable to breeth. CO2 is
> > heavier than O2, and hence it may accumulate on the water surface,
> > especially with a tight top cover.
anabantoids are better able to survive in oxygen-poor water than other fish
due to specialized air-breathing organs ("labyrinth organ").
tsuh yang chen, nyc