The fan needs to be blowing on them. They need to flutter in the breeze, not just have air circulation. This will make them fight the gentle breeze and grow a strong main stem.

I've grown 18/6 and 24/0 during veg...a lot of people believe the 6 hours of darkness gives them a break. The goal is to have as little stress as possible. Many people believe stress can turn plants male. I agree, 'though I just did a 24/0 veg and have plants that are now crazy big for my space.

I buy my bat guano on eBay, btw.

Do you plan on doing a CFL grow from start to finish?

Also, I'd recommend picking up a misting bottle. If you want to use an empty bottle of spray cleaner, that's cool, too, but be sure to rinse it with super hot water. I mist whenever I check on my girls. They love the humidity.