I quoted:I really don't understand the reference to hardwater micro. In fact, hardwater micro is the complete opposite of what i'm getting at. Maybe re-read what i've posted?
I thought you were making a point that Micro contained calmag sufficient for the starting point of "normal" tap water. The fact that they differentiate between 200ppm source water correlated to what I thought you were saying.but I also kind of remember being told, back then, that most base nutes, at least using GH's flora series @ 3-2-1 and 1-2-3 were designed around your average tap water.
I apologize if I misunderstood.