Did you ask?
One of the few things I find objectionable about your posts is the implicit assumption that you already know people's motives.
You should ask first, so you don't come across as a know it all answering the wrong question.
In my case, I'm replicating a complete system used with great success in a commercial facility. Perforce, that means reverse engineering their nutrient regime- which in this case means deconstructing the Canna lineup.
Slavishly recreating their formula with dry nutes will save me at least $800 just over the first few runs, after which I'll be in a much better position to make tweaks.
See how asking the RIGHT QUESTIONS FIRST illuminates otherwise incomprehensible behavior?