I have a question that I'm afraid to ask...

[daima]

Thank you, but WHEN should I change the light cycle to 12/12? Do they have to be a certain age or height?

If you used seeds you should wait at least 2.5-3 months before inducing flowering. If you used clones you can induce flowering as soon as roots have developed. I usually flower my clones when they are about 10 inches tall

dai*ma:stoned:

[Poohcat21]

Thanks a lot everyone, yes I'm using Cfls, why shouldn't I wait till they get too big?, I'm sorry I'm just curious if anyone wantts to answer that, cool. AND how do you clone a plant, is it like taking a cutting and growing roots on it?

[BukDatAss]

Thanks a lot everyone, yes I'm using Cfls, why shouldn't I wait till they get too big?

Because you wont get enough light to penetrate to the bottom of the plants if they get to tall by using CFLs. That is unless if you either have a lot of CFLs at the bottom as well as on top or if you do LST (low stress training).
If I were you I wouldnt let them get so tall, but thats just me

For cloning look at this, it was posted on our FAQs

http://boards.cannabis.com/showthread.php?t=23400

[Poohcat21]

Hey BukDatAss, thanks for the info it helps out A LOT. Especially the info on cloning, I'l definitely try it.