We tested PH, Alk, and Calcium of new water. PH is 8.4, Alk is 2.7, and calc is 350. Our current water is PH 8.0, Alk is 1.9, and calc is 400. That is why we are doing our first water change. Balance of Alk, calcium, and Mag (dont have a test for, on the way) have to be out of whack. Not...