Newbie grower needs an answer

If you are going to flower with flouros, you need to start flowering now. You should check out seemorebuds book.. he went to flower at like 14 days or soemthing. The flouros will not penetrate plants any taller... you should aim for a short plant that will
give you a little bud... otherwise, get yourself a REAL lite.. HPS. And keep the lights 2" above the leaves at all times.

Don't forget the fan to strenghen up those skinny stems.

long stems you got there. if you are using flourescents put them about 1-2" from the plant tops. They won't burn, trust me. Mine sit just under the light hood most of the time 18/6 works here too. on a timer, natch...