You should email your water company to get these stats...
I just received an email from my water company with the exact parameters for my tap (this is a new house I moved into). It appears that I do not even need to add a GH booster and can cut back on phosphates as well. Hell, my calcium and magnesium are ideal (so it seems).
Ortho Phosphate 0.87 milligrams per liter (mg/L)
Magnesium 5.0 mg/L
Copper none detected
Potassium 3.98 mg/L
Iron not detected
I have been dosing for the last 3 months on the high side and everything seems to be doing great. Going forward I'll see if I can get away with just adding Nitrates, a tad of Phosphate, Potassium and micros.
Anybody know what "ortho phosphate" is? Is it just regular phosphates?