I had the same problem, it was the 1000w light at about 48" away. Thought they would all die. Turned off the HID and went back to some old 4' gro fluorescents, no nutes. They all came back and are just beautiful now.well luckily the light has been off 6 hours and 5 are back to life, 1 is still down but i put the light over 24 inches away i hope there fine any help?