+1 for the Malu. They stay small and stay on the sandbed. The hosting like Justin said is mainly for natural habitats. Occelaris and Perculas arent supposed to host BTAs but you see them hosting them everywhere. I think the natural host for a BTA is the Maroon Clownfish BTW. Make sure you get a healthy anemone as they are fairly easy to care for. If you can keep acros Im sure an anemone would easily make it.

Edit- Nevermind I hadnt read the last page yet. lol