Cool! Thank you for the advice.<a href=showthread.php?s=&postid=12376024#post12376024 target=_blank>Originally posted</a> by IslandCrow
Calcium I keep between 400-450 ppm, Alkalinity 2.5-3.5 meq/L, and magnesium I believe should be 1300-1500 ppm. You may want to go to the chemistry forum to check on those numbers. I've been out of the country for the past 5 months, so I may be remembering wrong.