@bobo420, I added a little bit soil to her today. Also changed the Incandescent light bulb 200w to 4 yellow CFLs 25w & 1 White CFLs 50w, because Incandescent light bulb created lots of heat in my box.
@Mason, she's doing fine... you can add some more soil to fill that pot up and make for more rooting, it seems quite quick that she sprouted from the soil the next day you planted her, so it might be a bit shallow, but adding soil will make her more stable as well.
If you're using the 50W LED for veg, you can lower it way down, up tu some 10cm, and you'll be fine - you can measure the temp on the canopy when you lower the light, or just feel it with your hand, if it's warming up you can put the lights an inch or two higher.