What everyone else said. I would get that light closer to your plants. Also, I stopped using the 24/0 light schedule, I believe this was causing some of my plants to hermie on me. I like to use 20/4 when I am popping seeds and during early veg. Two weeks before going into flower I use 18/6. Then i use 14/10 for a couple days before making the switch to 12/12. I found that this will greatly reduce stretch and I think it mimics mother nature and puts less stress on your plants.
I'm not saying this is what everyone should do, or that this method is better than anyone's elses, but in my experience it has served me well. Sometimes if I actually want a plant to stretch a little bit more I make the change more dramatic and go right from 18/6 to 12/12.
Getting the lights closer to your plants is more important than your light cycles at this point. I keep my T5's about 3"-5" away from my plants, I also put a fan blowing over them so they lightly shake in the breeze. The fan is really important, the breeze not only helps circulate fresh air, it also helps to strengthen your stems so your plants don't fall over under their own weight.
Keep on growing!