Ange & Agu,
That's really helpful information. I will be about 5" above the water, open top on a tank that is 12" L x 11" W x 13" H. I think this will be a good alternative to going with 2 more of the Ecoxotic strips on the standard light bar they sell. That would bring me to a total of 5 strips if I went that route and they seem pretty weak. I would be mounting the panorama pro under a cabinet, so there would be no light bar anymore, clean open top.