It doesn't need calcium and magnesium if you used new soil in the transplanting and are giving it tap water. The problem with your plant is, you raised the water volume with the new transplanting and addition of extra soil. The plant has more water than it can transpire and so it has that wilting look. You need to allow the soil to dry at least a couple of inches on top before watering again. It may take a couple of weeks before you need to water. After the top dries, and when you water, be sure and water enough to allow a tiny amount of water to come out the bottom then stop and allow the top to dry well.
If you placed any new soil on top of the old soil during the transplant, remove it to allow the faster drying.