Hi all, currently my tank ca lvls are 380ppm and current tank is about 185 gallons (a mixed reef tank). My desired calcium lvl is 450ppm? Can i know how to start the 2 part dosing? i've purchased the Kh powder and Calcium flakes from iwarna. My magnesium lvls are 1300++ ish. I've use BRS calculators and calculate that i need 179.8g of calcium crystals. How do i go about mixing?