put the lights closer to the plants especially if they are cfl a couple of inches away should work. and dont use the heat lamp at all. i looked at the post above this one, yours also. to tall and to skinny, id top it and put the lights closer, oh i already said that. on a plant that is spaced out like that the bud wont grow into a bud, you will get little buds at the nodes pretty much.sunlight is good.