"Richard Phillips" wrote in message
...
Ok, you got very scientific about it
I have a lot of reading to do tonight!
R.

I also participate in an Aquarium Plants group where the relationship of
CO2/KH /GH and PH is one of the most common topics. There are as many
different opinions on these topics as topics themselves!!. Here is another
link to some stuff on the Krib site which you may as well read while your at
it.

http://faq.thekrib.com/begin-chem.html#reference

Rick