feel I must chime in here....
I have the nove extreme that 'serum' has except mine is 8x54w. Had it for over a year and love it. anyway, I have a HUGE amt of candy canes, all different colors. I have fragged a bunch and put them on those "aqua-mags". those magnet things you put on the glass on the sides. I have my canes smack dab right under all this light and they love it!!! they are all growing like weeds. this is an 80g bow aquarium. I also have a 55g w/ a coralife light-4x65w and I have two groupings of canes and they don't seem to be doing as well. they're alive but not like the others.