Auto flower female sour diesel plants kicking my ass....

So had yellowing leafs the other day gave nutrients, now I'm wondering are they looking or doing better, my biggest baby has leafs curled toward the light, not sure if it's cause it's to hot or light burn or what. I use organic soil, gave nutrients once in the beginning and once 2 days ago. 6 26watt 2700k cfl bulbs, 2 small fans.. ph level is roughly 6.8. There on 18 hour light 6 dark. Please help and let me know thank you much appeciated. Pics go as plant 1 is pic 1 plant 2 is pic 2 and plant 3 is pic 3, pic 4 is plant 1, pic 5 is plant 2 and pic 6 is plant 3

You need some 6400K lights in there. Not enough blue light to get them greening up or vegging properly. There's likely enough nutrients but with the wrong spectrum and such low power the plants won't amount to much.

Early on you should be using all or mostly 6400K. Try 4-6400K, 2-2700K and keep it at that for the whole grow until about 2 weeks from the end then switch the other way.

Better yet is to invest in a better light. Find a cheap 400 or 600W HPS with a decent bulb and you'll more than double your yield. A decent LED would work too but I don't know a lot about what would suit.

Also try 24hr light as with autos it retards the onset of flowering so they can get bigger before flowering begins and help the final yield. Once flowering well you can go 20/4 or 18/6 if you want.

Thanks much appreciated, gonna get a light nice tomorrow will post.