my plants 12 days old

[jolly green giant]

Hi there fellow growers...

Just need to find out that im doing the right thing.
my plants are 12 days old and are under a 250 watt sodium light 18/6
how do i find the females and when do i change to 12/12?
i water them every day,just to make sure the soil is most cause when i get home its gotten dry!

what you think?i have attached a pic....plz let me know

your plant's are stretching coz ther under a hps lamp, floros or mh are best for vegging.
dont water them every day, its too much and you will overwater them, every 3 days or so is best.
and transplant them into much bigger pots.