In my AIO I just using a filter sock and occasionally some charcoal to polish the water. In more heavily stocked tanks I using a Tunze Doc 9001.
Clowns, Royal Gramma, FireFish, many of the Damsels, Yellow Stripped Wrasses. Personally I like to window shop Liveaquaria. Since it's a bare bottom tank I would avoid many of the Gobies and pod eaters.
In terms of flow, where would be the best spot? I was looking at either a Orbit 2 or a MP10 hoping to place sps on the tops of the branches and some lps down lower.