Hi Again,

What I explained above is called cloning for sex. This is done independently of the plants you are currently vegging. You want to take a cutting of each plant and then put just the cuttings on a 10 / 14 or 12 / 12 (both work 10/14 is slightly faster) light cycle. You will leave the plants you've taken the cuttings from in your grow room where they are now at 18/6 or what ever light cycle you've got em at now. Now you can also do what nochow recommends which is to leave them be and wait for the preflowers to show. Just a matter of timing and what you want to do. Just wanted to make sure this was clear.

Herbus