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Re: [APD] Re: CO2 off at night
I can't how what you say is not so. The pH jsut is not
that diff in most situations, exccept as you mentioned.
So I wonder, has anyone tested to see if the rotifer
thingies actually die from CO2 on the suction side of the
filter? Often there is so little empiricism in this hobby.
--- Dan Dixon <dandixon at mac_com> wrote:
> Tomoko Schum at tomokoschum at knology_net wrote:
> > During 2001 convention Takashi Amano ...
> > told me to inject CO2 on the "output" side of my
> > Eheim filter . . . (His reason of
> > the filter was to protect delicate tiny rotifer like
> > microorganisms that live in the filter environment from
> > acidifying effect of CO.)
> With all due respect to the master, I don't see how the
> pH can vary to any
> significant extent between a properly working canister
> filter and the tank,
> unless the CO2 is being consumed or driven out of the
> tank water at very
> high rates. Even at a modest 50 GPH, a typical canister
> filter will turn
> itself over every 20 minutes, so the filter water is
> constantly being mixed
> with tank water.
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