Dragonets-Mandarins:  Notes From Penny:  One of the most spectacular fish kept in the hobby.  These fish spend 99% of their time hunting for live foods like copepods.  I am quite successful in getting mine to eat frozen Mysis & Cyclopeez.  If they do, they are as hardy as any other fish in a properly set up reef tank.  BUT only if proven eating these foods should one consider putting them in any other type/new system!  Can be kept in a single male/female pair as they are one of the few marine fish that the sexes can be fairly easy to identify.  Males have a long thin mast to their dorsal fin, females have a short cropped fin with no mast.  The mating dance is a sight to be seen!  Usually occurring at dusk.  Pairs have mate regularly here at AquaCorals!  Note:  I'm fairly confident that this entire species of fish will eat those pest flatworms.  Scooters for sure!  I also want to mention that I am with ORA & other facilities who are calling the Mandarins "Blue" instead of the incorrect term of Green.  I'm hoping the industry as a whole some day soon will make this change as well.
Sample pictures below unless noted by WYSIWYG.