AsNoriuanswered grow question 10 days ago maybe. i was turning off all fans, puting protective glasses on, sprinkle on top of soil spread, rub it in (mix with top lair if roots didnt occupy all pot yet ), water slowly, in intervals and parts. job done, collect run off, throw it out, wash hands well. they ussually go in mix with other bacterias, some could damage weak imune system, thats why all prevention.