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Re: CO2 and anabantoids

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.
> I've been thinking about reintroducing DIY CO2 in my tanks, but since
> I keep anabantoids, I'm not quite sure whether it is safe.
> Jan