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Re Lowering pH, etc..

To: Aquatic-Plants at actwin_com
Subject: Re Lowering pH, etc..
From: Paul Sears <psears at nrn1_NRCan.gc.ca>
Date: Fri, 1 Sep 2000 18:35:45 -0400 (EDT)
In-Reply-To: <200009011948.PAA01252 at actwin_com> from "Aquatic Plants Digest" at Sep 01, 2000 03:48:01 PM

> From: IDMiamiBob at aol_com
> Subject: Re: Lowering pH when adding hard water nutrients to soft water  
> 
> 
> To keep it as simple as possible, I recommend you reduce the sodium 
> bicarbonate to give you a KH of 3.  The more you have, the harder it is to 
> move pH down.  Then use simple hydrochloric acid to bring the pH down.

	That simply reduces the KH again:

	HCO3-  +  H+  ->  CO2(leaves)  +  H20

	Just add less sodium bicarbonate - the lower KH is what gives
you the lower pH.


-- 
Paul Sears        Ottawa, Canada

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