Doesn't the max amount of alk dosed in one day have to do with the tank volume and the amount of alk your corals are consuming?
I have a 120 gallon tank with mainly sps and i dose like 400 ml ( brs two part ) spread throughout the day to keep my Alk around 7... I have no bleaching and everything is growing and coloring up great (as good as leds get IMO), but i am still dialing in the alk-ca-mg dose so it might be precipitating!
Pic for reference, trying to figure this whole dosing thing out also!