Yea, the genetics for this plant keeps them short PLUS I started with a 400w MH right when they sprouted, which kept them from stretching a whole lot. Right now I manage to have the light about 7 - 8 inches from the canopy with the temps staying in the 76-78 range without any type of cooling system in the room, only 1 oscillating fan, a small fan at the bottom, and 70cfm extractor that gets the some heat out. I also leave the closet door open during the day so they get all the fresh co2 that they want. Very good air circulation in there.