Maybe a slightly dumb question, but if my tap water report shows 21.3ppm Nitrate, can I stop adding, or at least reduce, the KNO3 to my macro mix?
Thanks
PS. I'm going to dose sufficient potassium separately anyways as I have a few plants with pinholes on their lower leaves
Thanks
PS. I'm going to dose sufficient potassium separately anyways as I have a few plants with pinholes on their lower leaves