on a side note about the cfls, I have alot of trouble positioning them right. You have to use so many 23w's its retarded and hovering them around one plant that refuses to grow slowly has been one problem of mine. I've actually ordered a 600wat hps/mh setup to ease my pain of this problem. If your going CFL's make sure and get larger watt cfls it will make life alot easier 2 125watt cfls woulda made this a hell of alot easier grow