I've given you my opinion, I'm not gonna troll you on nute cost forever. But, wow!
The label says .5% Mangnesium...
The guaranteed analysis is nothing but Magnesium.
I see they claim that there are forms of N in the bottle. I had thought that meant it needed to be in the guaranteed analysis. my understanding of the label system is limited. That would be a good question for UB..
From what I understand... if they claim it is in there (N,P,K and micros) it has to be on the guaranteed analysis. So, as far as NPK and micros go... i think... bud factor x is nothing more than Magnesium.
I would think you are already getting that Mag in your base nutes.. maybe not. I think most complete nutes have between .5 and 1% mag..
Ahhh. Magnesium NITRATE... that is the N they speak of.
http://www.advancednutrients.com/hydroponics/products/bud_factor_x/bud_factor_x_faq_nutrient_facts.php
Better understanding labels would be some EXCELLENT info for RIU. I'm gonna ask Uncle Ben to make a thread.