Ive been reading through this thread. Im a ppfd guy but im not gonna chime in on that. I will say that i dont recommend re amending soils, not that its bad, but its just not practical given the cost/time to adequately do it. Definitely dont recommend doing it with
promix, because over time peat turns super acidic, because of the nature of peat and enzymes for bacteria, its just naturally really low ph, thats why they buffer it with gypsum. Or lime. Shit. One of the two. Odds are your last plants used up a good deal of that buffering agent for flower, leaving you with something that would take the paint off the car. This is all theoretical tho, ive never done it myself. Hope you get it sorted fella. If you start over and need some beans let me know, i’ll send some your way