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Re: Apparent O2 shortage, need help!!

One suggestion I can make is to use a check valve in the CO2 setup. When I used
one in the past, I'd have two bottles going to a T-junction, and a check valve
on the tank side of the T.

-- Stephen

> >After having many of my fish for several years, through thick and thin,
> >more than half of them met their ends last night, due to the contents of
> >both of my 2 liter yeast reactors being sucked into my tank by the
> >filter.
> I just had a similar experience four days ago.  Except I was using square
> juice bottles with rigid sides to avoid the collapsing problem.  However,
> water back-flowed into the bottle and then out again into the tank.
> Emptying not the whole bottle, but enough so that the water started
> getting cloudy white.
> I changed a bunch of water and left an airstone running for about 2 days.
> The yeast looked mostly cleared by then, and I tentatively turned it off
> two mornings ago.  There was bubbling of plants that night, and all seems
> well now.
>                                                 Elliot.