The Bicolor DottybacK, also called the Bicolor Pseudochromis, or Royal Dottyback, is two bold colors; the anterior portion is purple and the posterior portion is bright yellow.

It will not be intimidated by other fish and will defend its territory against fish two to three times its size. It will also eat small ornamental shrimp and is a predator of nuisance bristleworms.

The diet should consist of meaty foods including brine shrimp and prepared frozen foods.