Bartlett's Anthias

Snapshot: The males of this dazzling species strut their stuff with bold, electric violet bodies streaked by a vibrant yellow that runs along their backs. Females, rock a more subtle but equally stunning look: soft lavender with sunshine-yellow backs.
 
Other tidbits: Can grow up to 9cm or so. Distributed throughout the regions of the Pacific Ocean. These anthias do best in small groups.
 
Bare bones must know: Live-rock fish-only system or reef aquarium.