I think that by the way ur leaves on ur plants are cupping/canoeing down like that is due to overwatering or a possible ph problem. How many days between watering do u do? Fill out the troubleshooting form and post in this same thread to pin point whats going on for a more direct answer. As far as the lights go u want them to be as close as u can without burning them, your plants show no signs of burn as far as i can tell. Put ur hand underneath the lights at the canopy of the plants and hold it there for a couple minutes. If ur hand becomes to hot bear the heat then the lights are to close. Anyway im no pro yet at growing but I got some experience, hope this helps:thumbsup: