[Hypertek99]

You can get away with a pair of Ocellaris clowns. I had 2 in there no problems. As for light if you want to keep SPS you will have to upgrade to T5's or Metal Halides. LPS will do fine under those as well but don't need as much lights as the SPS. But in such a small tank i would go either just LPS or SPS as both require very different flow. SPS likes a lot of flow and LPS don't like that much. I would add a powerhead or 2 to get more flow Maxijet and Tunze are good. If you are going to keep SPS then you will need a skimmer but it will be hard to hide in a small system unless you have a sump or a refugium. If you are going LPS you won't need a skimmer. Actually there are a lot of nano keepers out there that are skimmerless. I'm one of them.