First auto grow ak47xlowrider2#

Hey peeps just got some auto's today, im still doing my research into them, but what id love to know from you guys is what is the best lights length time, nutes ect, im thinking of having them under cfls for the first 2-3weeks and then onto my 600hps till harvest, would they do ok under 12/12? I would give them more but i already have my other girls under the hps flowering. Please if anybody could help out id greatly appreciate it dont want fck them up or get shit results peace out

ps will be putting up photos as soon as they pop!

Planted the ak37 2days ago and they are already got their first round leaves out (dont know the proper name for them) so looking good so far will be putting up photos of them later when i get back!

Im growing an ak 48 and im using a 400w mh. for seedslings i go 3 to 4 feet away for the first week and gradually bring the HID down. I think you can put them under 12/12 but the yield wont be nearly as mich as 24hours or whatever.
go light on the nuts quarter stength at the beginning and then go half strength