The right ingredients are there, but the relative amounts are way off. Typically we dose about 4 times more nitrate than phosphate, but this mix has about 1.5 x as much nitrate as phosphate. We dose much more potassium than phosphate, but this mixture has about the same percentage of both. You might be able to use this as a substitute for KH2PO4, our usual source of phosphate, but that's about all. This mix contains a lot of ammonium, the "good" form of ammonia, so that is probably not a problem. You might be able to "balance" the nutrients by also dosing K2SO4 for more potassium, if you want to play around with it.
