Bodianus bimaculatus (named for it's two big "fangs"). This is a VERY hardy species that will feed on anything and will take nonsense from no other fish. Unfortunately, it can also be quite aggressive to like-bodied fish. If you don't have any other fish with similiar body forms, I highly recommend this species. They're colorful, active, and hardy as anything. Gets to about 4". Anything else I missed that you'd like to know?
One more thing to consider as with all of the livestock that you are planning to maintain is the stocking order of the fish. IMO this is the biggest mistake that some hobbyists make is by not adding the smaller more passive fish first to the aquarium. Although the hogfish fish does infrequently interact aggressively with like bodied fish, if things like Paracheilinus, Cirrhilabrus, Pseudocheilinus and Anthias species are introduced first to the moderate to larger reef aquarium the Bodianus bimaculatus usually is a great addition.
