I grow in soil and in hydro. I root in grow cubes using a very light Vitamin B series until the roots get established and then switch over to my soil mix. Whenever I transplant to soil, I get about 1 week or so of shock as the roots get used to the characteristics of the soil (ph, temp, O2 levels, etc.). The soil you are using has a high nutrient content. I find that if you introduce too much, too early, you will get ill side effects - including drooping, stunted growth, and sometimes burns. I find using only plain ph water for the first couple weeks after transplanting works best - or alternatively, the enriching the water with same light B1 series used to root. Let the clones get acclimated to their new environment before continuing with the feeding. Sometimes less is more.