MICHI-CAN
Well-Known Member
Depends on the quality of filter. Mine has a ppm of 78-96. Not enough solids. Orchids love it. Taste great. Girls suffer from cal/mag def. 120ppm and above no problems. Miss our artesian well in northern MI.That's why you add CaliMag along with your Grow and sometimes very rarely need to use micro nutes such as FloraMicro though I never do and my plants do wonderful, no micro deficiencies whatsoever.
I live in Michigan where the water is notoriously bad. I have family members who use the City water and they swear by it, but to each their own. I know for a fact RO does not impact them negatively