Ok now I have a better idea of your setup...

I would save the mercury in those vertical floros for now. They are too far away to benefit your seedlings so its just a waste of juice and light chemicals in those tubes for now.

Next I see your fans way up top. Not sure what they are for....but....make sure you have a fan blowing right on your seedling betweent the tops and the light surface. From your pics I cant see if you are doing that.

The fan should not tear the heads off the seedlings but should make them flap and flutter gently against the wind.....soon only the leaves will flutter and the stem will remain still.

I would add at least another set of floros to the canopy.

You can get some real true CFL long tubes like you have that have very high Kelvin temps in those bulb style and sizes.

http://www.fullspectrumsolutions.com...comparison.htm

they can hook you up with 5500 & 5900K floro tubes....trust me you will thank me in 28 days if you do