Having calcium deficiencies so I have decided to flush each of the plants with ph'd water. Seems to have worked well as the plants are growing well now. at 0.5inch a day. Im keeping the light at about 12-13 inches above the canopy. I have both veg and bloom lights on for 200w of light. The low stress training over the last 2 weeks has worked very well, as each plants has 5+ different shoots and the canopy is spread out. The initial growth problems and lack of stretching mean the plants are quite short and compact. By the end of this I should be done with low stress training and focusing on stretching the plants.