Thank you for the quick replies...

The lights come on at 8am and they're off at 2am. Somewhere between 14 and 16 hours into the light cycle is when they droop. It doesn't take longer than an hour. One of them didn't recover too well today, but the others are looking ok.
chefbeanstock Reviewed by chefbeanstock on . Plants Drooping, yellowing also Plants are drooping at around 11pm every night. In the morning they look better, then they droop again. What is your experience level? (first timer, novice, experienced...) Novice What type of hydro set-up are you running? Top feed, hydroton Your Equipment: A) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) 1000w HPS B) Distance from tops? 20" C) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)Enclosed w/ glass Rating: 5