I changed my mind on the canopy and have hung it over the tank. The light is about 15" above the gravel.
Here is a crappy look at the hardscape. I have bacterial cloudiness from the wood I believe leaching tannins and the tank cycling. I have the Aquaclear on the right side stuffed with carbon to remove the tannins for now. I have put a Whisper 10 on as the main filtration for the tank. I bought 2 4 1/4 square bathroom tiles for $.16 each at HD to attach to the wood and keep it in place. I am hoping in a couple of days for the water to clear and give a better view of the hardscape.