I highly recommend Pro-TeKt. It is good stuff. If you need any info on it just ask.
The product they use in protekt is
agsil-16h, you can getit from build a soil, blackswallow living soil, its a big ag product repackaged very cheap.
Works great as an emulsifier for soil products like neem.
I heard recently its not certified organic for root drenches.
But foliars are fine.
Ive been using the general hydroponics liquid silica product in my hydro setup for years .
Mostly now i rely on my rock rusts and ive been vermicomposting rice hulls along with my soil ingredient list
Just threw a bunch of leaves i saved from fall alot of hardwood trees around me .
Should be some primo castings