I like to make it as complicated as possible.
Just go to your local cinder block factory and get haydite...
Then get ROUGH peat from your local turf harvester....
Then go to your local pool company and get COARSE pool sand that nobody has ever heard of...
Then go to your local horse stuff store and get dri stall...
Then get chicken grit w/o oyster shell from your feed store...
Then get decomposed granite from your local...
My bigger question to soil-advice-givers, over the 20 years viewing online bonsai stuff is this:
Where the motherf*%% do you people live ??
I am in THEE transportation hub of the continent and I can't find any of that stuff within 50 miles of me.
It wasnt until recently we got a good and proper bonsai nursery.
Just hadda get that off my chest.
Goddamn online soil advice givers.