The autoflower super soil concentrate ratio is 1lbs concentrate to 5 gallons of soil. Add the 1 lbs of concentrate to 1/3 ish to 1/2 of the 5 gallons so around 1.5 too 2.5 gallons of soil mix very well then fill the rest of the way with soil. Water once as if you were watering a plant but dont let there be any runoff. Let this sit for a few days to a week before transplanting into it to let the concentrate do its thing and activate. Then just add ph'd water with the occasional touch up of cal mag or whatever else it may need but I haven't had that issue till harvest. And because its a super soil no need gor flushing before harvest.