Have you seen this article in reefkeeping online magazine.
http://reefkeeping.com/issues/2002-02/hcs3/index.htm
A quote from this article
"In most cases dottybacks need to be in a tank with mildly aggressive tank mates. Gobies, blennies, small wrasses and other non-aggressive fish will be in danger of harassment, while surgeonfish and triggers will create a more reclusive dottyback. Good tank mates include Cirrhilabrus sp. wrasses, Centropyge sp. angels, clownfish, damsels, and hawkfish."
and
"Of all dottybacks, Orchids are possibly the most "laid back." That is not saying much, however, as all dottybacks can hold their own in most situations. It does allow you to keep them in quiet settings much easier than some of their cousins, though"