bifter
Well-Known Member
Whats the easiest way to get my soil ph down? using just organic potting compost with vermilite just like i have for every other grow and never had a problem but this time my ww is getting brown spots and when i tested the soil it was 7.5-8 which i know is bad so how do i get it down ? vinegar??if so how much ??
cheers Bifter
cheers Bifter