My first grow

Lighting Is (CFL)
Veg 100w 64k 1450 lumens 12 bulbs
flowering i have some 100w 27K 1600 lumens
they are just some bag seeds
I have 10 started 3 weeks into Veg , 6" to 12" tall
Any advice on which nutrients to use and when i should start 12/12, or any other thing i should know .
Thanks

Looks good for a 1st attempt considering you used bag seed and CFL's, as you progress through your education you will find that you can attain much loftier heights with better lighting and better genetics, good luck to you, enjoy the fruits of your labors.

Plants look nice and healthy, very nice cfl grow. Depending on the soil using, most have enough nutes to get you through your first month. As far as what nutes to use, that's going to get you a ton of different opinions. Here's what works for me. You can flip to a 12/12 cycle when you feel your ready. Keep in mind that almost all plants roughly double in size during flowering. Good luck with the rest of your grow, you're off to a good start

your going to need way more than 800 lumens of light man. It's recommended you add way more cfl's or better yet invest in a HPS light.

Everyone always tells new growers, "more light!!, more cfl's, put the lights closer", WELL,..... everyone is right. You can do some stunning vegging with cfls, I still sometimes do it, and am still amazed. But where, "the rubber hits the road" is when you come to flower. CFL's are grand, but you have to put a bouquet of bulbs around, and on top of your plants. Weigh you options, and what you want to achieve, and spend. You can make a pretty cheap 400 watt cool tube hps grow light for like 80 bucks, or buy one for a scant over a hundred bucks. Maybe cfl's produce the exact result your looking for. I know not. I do know that you have to respect someone who goes through the trouble of growing.
Your plants look great. As far as nutes, that is a debate all it's own. I use General Hydroponics, (Lucas Ratios) for Dwc, and Botanicare for soil. Tons of great info on this site, and tons of wacked out bullshit. Be judicious when taking advise. Peace bro.