I was having some similiar problems as yours...LESS light too, and letting them dry DEFINETLY helped. Mine sprouted on 11/17 so they are a LIL older than yours. I got my temps down a little, and had to leave town last weekend for a meeting, and I stayed to visit family. I flushed them a little with distilled water(67c a gal), got em all nice and happy looking, left town worried, and came back to MUCH different plants.

They now have like 6 nodes each, lower leaves are getting lighter though...but now I am using just a tad superthrive (like 1/8 or something) and some molasses, and still battling with temp some.

Im kinda wakeNbake rambling, just giving you my personal exp so far...1st grow too.

OH I also added more light before I went out of town...forgot to mention. I have 5 of those same GE bulbs you have, and some 40w Sylvanias...4 of those(?)
The sylvanias seem to be better quality...