Hey man, noob myself but You havn't shown any pics since they were 2 in tall. Unless there is something I missed I really think it is much to early to tell.
Props on the paper towel, there are a bunch of ways but I don't understand why one would put it right in the dirt. Take a few seeds, let them germ real good with a lil root about a half inch tall. Put them in some dixie cups with pin holes in the bottom. That way you can be selective of which ones make it.
if you put one seed in a big pot with dirt, you are putting all your eggs in one basket. Plan for the future ( i know you said it was just a quick grow but I guess i'm talkin to others).
For instance, germ 10 seeds, say only 6 make it. Put 6 in dixie cups, say 4 make it. Without much experience, you may be lucky to see 1 out of the sprouts be a female (assuming you will mess up at some point as well as it being 50-50 male-female). Remember, worse case scenario you can ALWAYS chop if you get too crowded but you cannot make them magically appear again.
As far as the fert, remember that it can grow wild under natural conditions just fine. Most noobs mess up by over watering or over fertilizing thinking that there is something they can do to fix it. Some times the best thing to do when put in the best environment possible is just letting them be.
Also as far as using cfls put them as close as possible without burning them (what I read is you may be able to get away with 1 inch but 2-4'' is recommended.
Thiv: to answer your question about stretching it could be not enough light but it also could of been you having enough light not close enough to it. But your right in saying the plant will stretch in an attempt to reach for it. Also to help combat that (and is also preferred though I have no idea if you did this or not) put a fan on the plants. It will help with air circulation as well as making the stems stronger.