I would grab a few more flos. If I where u or cfl lights . Cfl won't cost u to much and you will be much happier more light the better off u will be. I would get the highest watt cfl u can find home depot,lowes and put 1 per plant plus your flo. If u can get more do it. I have done a lot of reading the past few months the more light the better u will be. 2,000 lumes per square ft is min. U should be at from what I have read more people that have more exp. Will chime in and help you I'm sure. This is just what I would do if I was you they look really good though nice and healthy!