@Randy Holmes-Farley My question is pretty specific. Some salt mix recommend mixes at 33 ppt and some 34ppt. Now, their QC sheet says at 33 ppt the amount of Calcium is 440ppm and Mg is 1380ppm. If someone mixes that salt to a salinity of 34 ppt or 35 ppt what should be the Ca and Mg level in that salt water. I knew that will increase but how much specifically? Can it go over more than 1500ppm for Mg and 500 ppm for Ca? Whats the way to calculate it?