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Re: Aquatic Plants Digest V4 #335

>Date: Fri, 09 Jun 2000 17:41:05 GMT
>From: "K Will" <steelwill27 at hotmail_com>
>Subject: PH rise
>Lately the ph in my tank has risen to around 9. With a batch of homemade CO2
>it goes down to about 8.5. The tank has been set up for almost 2 years now.
>I've tried adding a little sulfuric acid to lower it and it works for about
>a week than starts coming back up again. It was always at 7.4 before this
>started happening. What could be causing this?
>Thanks for any help

What's the pH of your tap water, and what's your water changing routine?