Instead of an Orchid Dottyback you might look at the Blackcap Basslet. http://www.liveaquaria.com/product/prod_display.cfm?c=15+2730+47&pcatid=47 Beautiful and a good reef inhabitant, not as pugnacious as some other basslets and dottybacks. Should have some shaded spots in your tank though, as these are deepwater fish and don't like a lot of light at first (although they will adjust over time).
