Fertilizer at 2 weeks?

I'm getting ready to transplant my 2 week olds to new pots from regular un-nuted soil. When I use the new soil blend for the new pots, whats a good mix and how do I add fertilizer? Is liquid, the green stuff, or the little miracle grow balls the best? The balls seem the easiest, so if anyone has experience, let me know.

I was thinking, 1/4 perlite, 2/4 potting soil, 1/4 vermiculite with a good dose of the ball fertilizers? Or should I still wait til 3-4 weeks before doing any ferts?
Also if I do wait, is it easy to apply fertilizer without having to change the soil? And LASTLY, are worm castings a good dose in themselves or are they to be combined with some type of ferts?

Thanks!

The time re leased fertliziers are not good to grow MJ with..And two weeks they really don't need any nutes yet. Its best to use a good liquid feritlizer that you add to your water and fertilize once a week.