Chemistry is a mess. Please help.

[ReEf BoSs]

Sounds like you might just be over thinking it . Dose as said above either alittle a day or aggressive. I vote aggressive as you are already fustrated.Dose until you tank is where you want it in one day then test alk every day/ calcium after 5-7days. This will tell you how much ur needing to add. I dose way more alk than calcium and have never dosed mag but it is in with my calcium, everything is balanced as i can tell. Good luck the people in this forum know way more than me .