Are those 12 inches wide (( front to back ))?
If so, an S. Haddoni might outgrow it in time, so keep that in mind. Also, with a smaller tank, you will be limited with what else you can keep in there -- S. Haddonis will eat other fish.
For the lights, and that deep of a tank, I would go with 250 -- might be able to get away with 150 DE 175 SE if you use a 10,000K bulb -- which I don't care for, like a bluer look.