So there may be a change of plans. I think I am going to save money to get an ATI for my 180G, so I'm going to scale back plans on this nano. But I agree that I think I will just do 2 T5's. If I get a fixture that sits on the tank, it will be very close and frankly, at that height, I don't think it matters if you reflectors are German or Chinese .
I also don't think I want to drill. Maybe I'm getting lazy. I think I will use the K.I.S.S. principle and get an Aquaclear 50 and house the heater, etc.