T5 39W bulbs are 34" long...much bigger than your tank? With single lamp reflectors, you don't need anything close to 9. You can probably run 4 aquablues and call it a day, or throw on a pair of blue+ if you want to run heavy lighting.
9 T5 bulbs over a tank that shallow would probably burn things. If it were my tank, I'd place a rack 4-5" under the surface of the water, and run the lowest wattage lighting as close to the water's surface as possible.
FWIW, I ran my 250g reef with just 4 T5s for several months. Kept sps and even acros in there, and they grew the entire time. It's a lot deeper than 12", lol. Keeping the water clean & clear can make a HUGE difference in light penetration though.