Ok guys I think something is going wrong with my nutrient mix.
I have a starting water of 200ppm 500 scale
I’ve just added 1g/gal of Epsom
Salt and 4g/gal of megacrop.
The resulting ppm is 470ppm on 500 scale.
How on earth can 4g/gal megacrop and 1g/g Epsom be only 270ppm??