Update with pics - been 16 days since pushed above soil...
...21 days from seeds sown in soil. Just taking it nice and easy. All three plants doing well. All are showing early development of their 4th set of true leaves. The two tallest pants are about 4" tall, and the 3rd (the runt) is 2" tall now. Still have the light source 18" from the top of the plants. For the two taller seedlings, seeing good spacing between nodes - on both, have just under an inch between 1st and 2nd sets of true leaves. Going to wait until I see an inch between the 2nd and 3rd sets before I consider moving the light closer to the plants. Other than giving them some Microbe Brew a few times, had not fed them any nutes at all until two days ago, when I gave them 1/2 teaspoon of Big Bloom mixed with the ph'd (6.5) bubble water. Planning on feeding them 1/2 teaspoon per gallon EACH of Big Bloom and Grow Big in two or three days.
The only odd thing I have seen so far, other than the bleaching from having the light set too low about 10 days ago, is the 2nd set of true leaves on the runt (shortest seedling). Check it out in the pics - one of the leaves on the 2nd set of trues has 3 fingers, but the other leaf has only one (which is also kind of mis-shaped). Mutant plant? Yeah, I still love her, anyways.
A couple of questions:
1. Should I wait to see and inch of spacing between the 3rd and 4th sets of true leaves before I lower the light source? Or would I be ok lowering them once I see an inch spacing between the 2nd and 3rd sets?
2. When would be a good time to set ballast at 400w. Have had it set at 250w so far. I've enjoyed working with mostly just passive air to this point (has made my first grow less complicated); but i'm hoping for a pretty decent yield on this grow, so... whatcha think?