Because, in that pH range, the higher KH allows the water to absorb more CO2 or because you have to use more CO2 to hold that pH range if the KH is high? Scott H. --- Roger Miller <roger@spinn.net> wrote: > I think what Red Sea is saying is that *IF* you limit > yourself to pH values > in the range of 6.4-7.2 then a higher KH value allows the > water to a have > higher CO2 concentration. That is true. > ===== See you in Dallas at the Aquatic Gardeners Associaton 2003 Annual Convention Nov 14-16 S. Hieber __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/