IMO

vegging cycle is about growing a good root system. 5000k-6500k lights; (don't matter what kind) keep the plants focused on growing a strong root system and slow, bushy leaf development. I like 20/4 light cycle....:thumbsup:..anything more than 30 days vegging is a waste of my time.....the plant should be 12-15 inches tall and have a robust root system by then. (my nirvana WW's show their sex after 28 days veg; I like that pheno trait..~eat your heart out~...

Once you have a 1 gallon pot full of good roots...you can rock n roll into the flowering cycle 12/12....2100k-4000k lighting....and transplant into 3+ gallon pots....once the females have shown themselves.

EDIT: just noticed this is the hydro forum...:stoned:...please ignore this post
Dutch Pimp Reviewed by Dutch Pimp on . 18/6 or 24 hours? It seems that on more then one occasion I have read where someone uses 24 hours of light for vegetative growth. I currently use 18 hours with 6 rest, but why do I do that, if the next guy is growing 24 hours a day? Exactly what is it that occurs during the off cycle in the veg state? Why can one guy do 24 hours and the next guy feel the need to do something shorter? If I can get more growth by leaving the light on 6 more hours each day, then what's stopping me? Anything? I have seen Rating: 5