These ladies are running in soil.. which i am tier transplanting them into 1 gallon smart pots once they sex. Last auto run in there i have a 3.2 oz grow akr. I am growing in 2-35 gallon storage totes. with a 6 inch inline fan as a exhaust, a 6" negative port in the bottom, and a computer fan running as a passive intake blowing across the 8 - 26w cfls..