I would have purchased Ca nitrate by now, but this one part formula has worked pretty well for me so far. It seems like one of the essential chemical salts for hydroponics to me, too. People think of it as a supplement? Interesting.
The Oasis mix has three kinds of iron and says it has uptake effective up to pH 8.0, as far as I can tell, it’s true. My reservoirs run right around 7.0 most of the time, but sometimes mid 7s and the plants seem to do equally well as when I was running around 6.0
Folks are funny about chemistry, a lack of scientific literacy causes a lot of weird behavior. I am a high school dropout, but I look around and feel strangely well-educated sometimes.
I made a new recipe the other day based on your suggestions, and will use it next run. I am targeting about 150ppm of N, and yes I meant 2-1-3 like what gets printed on product labels, assuming primarily p2o5 and k2o.
I am sort of surprised you run N at 200ppm, but if you are pushing them hard I suppose it makes sense. I bet your veg cycle is short because they grow so fast.
Cheers, and thanks so much.