NANFA-L-- Hardness & pH

Gerald Pottern (
Wed, 31 Aug 2005 06:54:14 -0700 (PDT)

If you want more hardness (calcium & magnesium) but low alkalinity & pH, you might could add non-carbonate salts of Ca and Mg, such as Ca/Mg chlorides or sulfates. It's the carbonates (eg aragonite limestone) that consume free H+ and push pH up. (Mg-sulfate is Epson salt). has anybody experimented with these ?? --gerald, hangin on the neuse, NC

Date: Mon, 29 Aug 2005 06:23:08 -0700 (PDT)
From: Laura Burbage <>
Subject: Re: NANFA-L-- hardness and pH

Thanks everyone for the advice. I'll give a littlemore info as to what I'm looking to do: In the
established tanks, the water stays-in-high pH evenwith the fish load. Perhaps this is because I have alot of plants (which are my main interest). Theplants would like higher KH/GH than 2, so I want toraise it. BUT, if I raise it to where I want it, thepH goes even higher, to about 9! I do have plenty offish in the tanks, and have soil underneath the gravel(yields CO2). I do not wish to do CO2 injection(PITA). So, how do I raise the KH/GH and keep the pHfrom skyrocketing? David - doesn't peat soften aswell as lower pH?
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