They seemed like they were taking off a little on the slow side so i added a nutes at 1/4 strength and they looked so much happier the very next day with the soil i used with my last grow i didn't have to add nutes until my autos were just starting the pre bloom phase , I'm still dialing in with this inert soil I'm using this grow I also use an organic foliar spray very light mist, just barely a squirt