I’ve been testing my tank since I started it, about 2 months ago, with api test kits and it kept coming up with Alk 7.0 and wouldn’t go down and calcium started at 460 ppm and went down by 20 ppm every 24 hours. Well today I got Hanna test kits for both and tested with them. It got 8.6 for Alk and 592ppm for calcium. How is that possible for my calcium to be so high because I use reef crystals salt which is supposed to mix up to 455ppm at 1.026 salinity.