On Wed, 18 Jun 2003 15:53:51 -0600, John Rutz
wrote:
What is KH and what is GH? pH I know.
Kh calcite hardness GH general hardness
John Rutz
And good KH is important so your pH doesn't fluctuate wildly from AM to PM.
~ jan
See my ponds and filter design:
http://users.owt.com/jjspond/
~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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