Cannabis is an odd duck because of all the proabision. All I can find is the following.
Cannabis is a large calcium user.
Little movement or presence of silica in tissue.
Some grasses are great movers of silica. But all the plants I know that put large quantities of silica in the cell walls are C4 plants.
Diotmata earth is helpful as part of an IPM plane. Great help with fungus gnats as part of a program.
Sand that is not part of my mix always causes me problems with artifical water table perching and changes in the growth medium column.
Anyone have thoughts.