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Re: PH adjusting to CO2 and rising again

To: Aquatic-Plants at actwin_com
Subject: Re: PH adjusting to CO2 and rising again
From: Dave Gomberg <gomberg at wcf_com>
Date: Sat, 23 Sep 2000 07:44:23 -0700
In-Reply-To: <200009230748.DAA17300 at actwin_com>

At 03:48 AM 9/23/00 -0400, you wrote:
>after the PH is just where I want it, and stays that way for a couple of
>months (with bottle changes of course), it often rises back up to the old
>high level again

This sounds like a slow dissolving base (such as CaCO3 from shell bits in 
your gravel).  If you take a sample of the gravel and pour acid on it, does 
it fizz?




--
Dave Gomberg, San Francisco            mailto:gomberg at wcf_com
NEW Planted Aquaria Magazine:        http://www.wcf.com/pam
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