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Re: Aquatic Plants Digest V2 #854

> Date: Thu, 24 Jul 97 15:20:13 -0700
> From: gomberg at wcf_com
> Subject: Re: Aquatic Plants Digest V2 #853
> On 07/24/97 at 03:49 p, Aquatic-Plants-Owner at actwin_com (Aquatic
> Plants Digest) said:
> > A bell-jar reactor is an inverted container that holds CO2 under
> >the water.   If the CO2
> >goes crazy, it will simply bubble out from under the container --
> >you may get a little more dissolved CO2, but it will generally not
> >be that much.
> WRONG!  If your tank has a cover (glass or a full hood), not open
> like George's, then the "air space" at the top will fill with CO2,
> driving out the O2 and your fish will suffocate.  The voice of
> experience (painful) brings you this info.

Wouldn't this require a completely closed canopy?