I’m really confused
Me too.
From Aquaforest Reef Mineral Salt webpage:
Aquaforest Reef Mineral Salt is a Sodium Chloride (NaCl) free sea salt. It contains all the other basic components found in natural seawater, such as Magnesium, Calcium, Potassium, Bromine, Fluorine, Barium, Iodine, and trace elements.
I've been using this salt in the wrong dosage because I was weighting it as if it was Reef Salt. With Reef Mineral Salt salinity is much MUCH lower compared to Ca/Mg/Alk. Adding more to match my tank salinity caused all the other parameters to jump sky high. Apparently the two are not the same thing: Reef Salt is the one that should end up with 1025sg, 411 Ca, 1300 Mg and 7.5 dKh (which I should then integrate with either kalkwasser or Kh Plus to reach 8+) once mixed.
Now that I know which parameters I should monitor, what are the optimal ranges, and I have all the needed test kits hopefully I'll be able to bring everything back to normal.