No, you showed pics of healthy plants grown in nutrient rich soil that was supplemented with Jacks but thats not the question, so I can use Jacks in promix with nothing else but mag sulfate? It would be complete then? Keep in mind I use Jacks on my tomatoes, jalapanos, seranos, bells, night blooming jasmine, dipladenas, violets, and the occasional pot plant grown in soil so im not new to the stuff but its not complete, unless its used in a nutrient rich soil. But it definitely great stuff to use in a good soil that needs a boost after its depleted its nutes that it already has.