Honestly idk but I’m running a 2 5kg coco bricks mixed with 2.8 cu ft
promix hp soil (biofungicide mychorazzie. )With around 30-40% perelite cut. Added
mykos and dr earth root zone to the mix. Perelite is miracle grow( all I could find here) but npk is nothing in it for real. Just trace numbers.
Are you saying there is no microbes or relationship of microbes to plant health in coco.? I think fungus n microbes grow n feed anywhere you let em.
Not trying to be smartass just I honestly don’t know. I thought microbes existed even in pure hydro and were crucial to plant uptake.