[molybdenumman]

I have low alk (~2.5 mEq/L) compared to my high levels of Ca (500 ppm) and Mg (~1600ppm). I would like to boost up my alkalinity. I have made the appropriate solution based on the alkalinty calculators.

Should I be doing water changes to get my Ca and Mg down or should i concentrate on my alk problems? If yes to alk, then do i add the solution (32g sodium bicarbonate / L) slowly over a few days or all at once?

Guidance would be appreciated.

Thanks

DanTheMan