[APD] Re:OUCH! Water so hard you could knock on it!

[Paul Krombholz <krombhol at teclink_net>]

    * From: David Terrell <Dave at terrellclan_com>
   

My tests have shown the water in my aquarium is 24 degrees GH, 4KH. I 
tested the tap, which revealed 2GH/KH (I raised KH with baking soda). 
I have natural gravel, a large lava rock and laterite. Filtration is 
done by bio balls, and I use compressed CO2. What could be causing 
this and how do I get it to a safer level?


If the GH is 24 and the KH is only four, that must mean that there is 
a whole lot of CO2 dissolved in the water or that nearly all the GH 
is due to non-bicarbonate  calcium or magnesium salts, which would be 
most unusual.  Try letting the water stand in a shallow pan for a day 
and then test KH.  If it is not a lot higher, then all that GH must 
be due to calcium chloride or calcium sulfate. 
--
Paul Krombholz in sunny central Mississippi
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants