like bobjob4u said, it's not uncommon for your plants to sag when the lights go out.

why do you have your temp set to 76 while running co2?


-shake
headshake Reviewed by headshake on . plants wilt at end of 18 hour cycle experienced novice Your Equipment: .1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) 9x600watt .2) distance from tops 2-2.5 feet .3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...) enclosed reflector .4) Is there a consistent fresh air supply? Rating: 5