I am now running a AHSupply 2- T5HO retro fit kit with their bulbs (for now) 1 6500k and Plant bulb. The lights are about 5" from the water surface. In the past I was running AHSupply retro Power compact 2-55w, with 65k bulbs. The power compacts were installed into the factory "oak" plastic light strips and were directly on the glass lids. I am not using the glass lids now, since I built the canopy.
So I should have plenty of light, but I don't have access to a light meter, so I am just going by what the experts here have told me about the T5Ho lights!
I WILL try it again someday, but I will find a good source for it first!
Keep up the great work on a GREAT LOOKING TANK!!!