Add a couple of 150 watt cfls wall mounted on the side of the grow room[daylight bulbs]i have done this loads of times but under h.p.s lighting,but use what you have make sure the lights are realy close to the tops of the plants.but i would veg them for at least a week before flowering.suppriseing how much that week can make.a tip for the future let them get nice and big clone them to bits and then once they have roots flower them the sea of green method.you can normaly get a ounce dry per plant but this is a good and well underated method.the good thing about this is that all the plant recives max light wheres has a big plants are very dark on the lower cannopy so you recive very little bud there any how.but i always get around 9 ounce dry of large plants.