Yea I think you might eventually want to look into a 4-6 inch inline duct fan, they run 24.00 at home depot.

Those small fans are good to blow the leaves around and cause thicker stems.

Or you can use them for smaller cabinet grows.
ate Reviewed by ate on . Fan installation question I was wondering if 2 120VAC 4" Fans from radioshack would work for air circulation for a grow cab I'm building? The fans are 22 watts 65CFM airflow, if that helps. Anyway, I was wondering how to make one fan move air faster than the other because I guess its bad to have them both running at the same speed? Any help is greatly appreciated. A picture of the fan is below.:jointsmile: Rating: 5