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Re: CO2 question

> From: RFellows at concentric_net
> Subject: CO2 up and running and one more question
> One more question, 


> When I add the baking soda to the water it raises the pH to 7.6
> (7.2 out of the tap) so how do I get the pH down to 7.0 so I can add the
> water to the tank?  I am changing 5 gallons in a 29 gallon tank, is this
> even enough to  worry about?

	Don't worry about it.  The change of the pH in the tank will be
pretty small - the CO2 concentration will change by a factor of about 0.82,
so the pH will change by minus the log of that, or about +0.08.

Paul Sears        Ottawa, Canada