@Low, glad you’re liking the results in coco. I’m also liking coco better than soil, except for the extra workload, lol. If I would have seen your posts while you were going through that pH issue in soil I would have suggested you search for and read Big Mike’s pH Manifesto, and then also his piece on “hitting the shift”.
This diagram is part of the “hitting the shift” study that explains how some of our nutrients and additives contain Anions and some contain Cations, and the effects they each have on pH. I don’t think Fox Farm does very extensive research into this stuff the way Advanced Nutrients does.
I also had issues at the beginning with Fox Farm nutrients and soils, but several years ago now Hellraiser suggested Advanced Nutrients to me, and I haven’t had a pH problem since!