Heather wrote:
Pardon me for asking a dumb question but.... (Still new to some of these
things)

What is KH and what is GH? pH I know.

Thanks.

Kh calcite hardness GH general hardness



John Rutz
Z5 New Mexico

good judgement comes from bad experience, and that comes from bad
judgement

see my pond at:

http://www.fuerjefe.com