Thanks Rev! I have some black nylon netting type fabric that I am going to use to cover the vent holes on each side, and I have to change out one of the bulbs for another "blue" of some sort, I broke one of my pure actinics taking it out of the old canopy.
I am also thinking of making an acrylic shield for the light, for 2 reasons, it would let me lower the light closer to the water, and it would force the air to be drawn from the ends, and over the bulbs. (This should give an even greater cooling effect.)
I also have to get some weather stripping, and maybe some Dynamat material, the fans being attached directly to the Al sheet make them rather loud. I am thinking a little vibration isolation would quiet them down a LOT!