If you need to find out how much bicarbonate to dissolve , go to a reef calculator like the one on brs, add your water volume, current level and desired level and choose dry sodium bicarbonate crystals and It will tell you how many grams it takes to raise the tank , then since your raising around 2dkh divide that number by 2 to split the dose in half or by 4 if you want to raise it by 0.5 dKH a day roughly
