Thread: GH and total hardness
View Single Post
  #4  
Old April 2nd 04, 03:21 AM
TEACHSKIP
external usenet poster
  
Posts: n/a
Default GH and total hardness
JLD,

Thanks for the reply and the link.

Skip...
See:

http://www.thekrib.com/Plants/CO2/ha...arryfrank.html