Not to worry Teeka.
It sounds like things are begining to balance out. Keep dosing the calcium and aim for a target of 420-430. At that point your alkalinity should become much more manageable. After your parameters balance out you will want to dose calcium and alkalinity equally. Since you have such a low bioload you will probably not have to dose very much at all once your params are stable. If you can raise your calcium by 15ppm each day then you should reach your target before the end of the week. Let us know how things go.