Robert T. Ricketts wrote:
If you are concerned with the sodium ion, potassium chloride will have the same effect as would ordinary salt (sodium chloride). Potassium chloride is the material in many slat substitutes available from the grocery stores.
Another good source of cheap, pure potassium chloride is the health food store. I use this brand: http://www.luckyvitamin.com/item/itemKey/52897
-- Jerry Baker _______________________________________________ Aquatic-Plants mailing list Aquatic-Plants at actwin_com http://mailman.actwin.com/mailman/listinfo/aquatic-plants