I noticed that most american brand nutrients are 3 - parts and most Dutch nutrients are 2 parts. This is what got me wondering
I spent a coupe of hours speaking to the technical director of growth technology and he told me, unofficially, not GT company policy, just a friendly grower to grower chat, that "all the nutrients on the market are within 5% of each other"
He also explained why his coco nutrient genuinely outperformed any other on the market with a very genuine explanation.. Organic additives, Fulvic acid and other things