Yes, for the light requirement, a 4 bulb HO on a 10 gallon would be perfect (also water parameter: ie: skimming, testing come into play of course). I would stick to digi's and birdsnest or LPS, softies. I have a large colony of digi that he loves the most. He sits on other LPS's like my candy canes or Chalice's. Not my torch...nothing to sit on..lol.
He's up top in the green digi colony: