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Re: CO2 for a 200 gallon

> > Get a better
> > needle valve, ARO's are junk.
> The ARO valve does leave a bit to be desired. Would you
> recommend the M3 valve?

Works for me.
> > Get a larger pump for the reactor.
> My previous post was incorrect. It's a  Rio 1100. Anything
> bigger won't easily fit where I want it.

That's not the issue then.
> > No, a well set up system should run about 3-4b per second
> for a
> > 200 gallon.
> That's probably close to where I am. It's difficult for me to
> accurately count bubbles at this rate.

Then mixing within the tank is about all that's left except
> After reading the responses I have received so far, I went
> back & tested everything again. It turns out my pH Pen was
> substantially in need of calibration. I reset it & got
> readings more in line with what I am targeting. This morning,
> pH is 6.7, KH is at 4. I am currently slowing the CO2 at night
> to about 2 bubbles/sec. One half turn on the regulator drops
> the pressure just
> enough to reduce the flow without trying to adjust that
> finicky ARO valve.

The rate may vary with that valve. Keep an eye on it and
consider something better than the ARO.
Tom Barr
> David Modine

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