That’s correct.
Calc 420
Alk 12
Mag 1260
OHHHH... that's salt mix. IDK man, high alkalinity makes me really nervous. I know lots of people run it just fine tho. More of a tight rope than I like to walk. I prefer a path the size of the hover dam.Those are current tank params? Me personally... I would hold Ca where it is, allow kH to slow fall to 8-9, and raise Mg to 1350-1400. That's just me tho. You can run that kH if that's what you want tho, but I would still raise Mg to 1350.