Thank you stinky, I'll try dropping the lights like you suggest. I guess I thought 6" would be close enough for a couple 54 watt T5's on some newly emerging babies. But it has been a few days and I'm sure they can handle more now. Most of them are growing out, instead of up quite nicely.

There is plenty of air movement, oscillating fan blowing on them. I think I'll move the problem ones to the heat mat. I wonder if it's coincidence that the heat mat spawned no problem children.