keep them about about an inch under the light if y are using envirolite or cfl
if its hps or mh about 6 or 7 inches with a good fan blowing on the bulb
cheers
busteruk7 Reviewed by busteruk7 on . another Question? what does it mean if your plant's leaves are turning brownand curling up? does it have a disease or am i messin it up somehow all the others seem to be fine. Rating: 5