Jerry Baker wrote: > If it's measuring CaCO3 equivalence, measure out 300g of NaHCO3 into 1 > liter to get 10°dKH. 300mg. 300g would be a lot. ;) -- Jerry Baker _______________________________________________ Aquatic-Plants mailing list Aquatic-Plants at actwin_com http://www.actwin.com/mailman/listinfo/aquatic-plants