Critical Auto x JEM

So, these are growing under a 100w CFL bulb that sits about 9/10 inches above. They are growing aggressively, but they are VERY leggy. Means I need to put that light in their lap (damn near). I've had to bury them twice, but they are coming along nicely and have sprouted their third set of true leaves. I will try to top one of them, and LST one in the next couple of weeks. They are autos, so I'm not sure how much the topped one will be stressed.