ditch the flood light as it corporates too much heat. Get a MH for veg and HPS for flowering if possible. If you can't afford all that you can using CFL's to grow with too. It all really depends on the size of the grow area. Also, leaving your door open through out the day isn't going to help them. They will also need a oscillating fan blowing on them also, to thicken the branches and to keep the plant "breathing" per se.