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  #1  
Old 07/25/2007, 10:52 PM
dogmatix dogmatix is offline
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Join Date: Feb 2003
Location: Auckland, New Zealand
Posts: 45
Will CaOH lower Kh ?

I think i have a good understanding of this but i just want to clarify.

If there is not enough CO2 present can kalk actually precipitate out or lower Kh ?

thx

Ben

Last edited by dogmatix; 07/25/2007 at 10:57 PM.
  #2  
Old 07/26/2007, 12:03 AM
Boomer Boomer is offline
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Join Date: Aug 2002
Location: Duluth, Minnesota
Posts: 7,679
No, Kalk saturated, in FW, has a pH of +12 and still little precips out. In your tank no way to to a point. What does happen is that if you dump in some Kalk and it is not allowed to disperse quickly enough, there may be some CaCO3 forming. You will not be getting much of this to do anything to your Alk. So, in your tank no..

Things to read.

What Your Grandmother Never Told You About Lime
http://reefkeeping.com/issues/2005-01/rhf/index.htm

The Degradation of Limewater (Kalkwasser) in Air
http://reefkeeping.com/issues/2003-0...ture/index.htm

What is that Precipitate in My Reef Aquarium?
http://reefkeeping.com/issues/2005-07/rhf/index.htm
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