I've been running ppm in the 200's. VPD under 1. Neither plant is happy -one is under nourished and the other looks hyper. Early on I wasn't titrating Calmag as much as other nuts for auto's (ended up deficient last grow) but then the Sour diesel took on too much CalMag. These girls need food but when they get it they try to take up a weeks worth of nutrients in one day. I can see why so many growers won't grow autos...finicky unpredictable bitches. One again though, the Bruce Banner is the better of the two (even though SD started out better)