You have to remember that before the light craze took off, growers were using T5's ....we use LED's here in D.C. But some of my friends have HPS 1000....i have seen plenty of auto's do fine under CFL's...dont be discouraged bout autos...they're becoming much more resilient as breeders continue to breed n cross more...its a simple plant and i think theyre great. Dont be discourage by all of the opinions...of course they will be less potent than regs but if grown right, you wont be able to tell...you can use Co2 , it will help but in my opinion the small difference it makes, isnt worth the additional time...however there are the Co2 bags that are natural and seem to work well without any extra maintainence ....make things simple man...i def would go 18/6 ...throught out the whole grow, and just feed em...idk ur feed schedule. Some people feed only nutes once a week...i got a friend@mistergrnthumb on I.G. That feeds nutrition (organic) every feeding and everyday...his work, u will see speaks for itself. I have two triple cheese going right now that i feed nutes to every feeding and been feeding them nutes since seedlings...i also topped them and theyre doing great...with two instead of one nice sized tops....Also, you really dont need an auto plant for a quick bloom....you can grow a regular seed from seedling to bloom in no time by simply starting it off under a 12-12 photoperiod...remember, u can flower a plant nomatter how small it is by simply switching the photo period