Queen Coris Wrasse

Snapshot: As a juvenile, it flaunts a bold orange body with white tiger stripes edged in black. Females mature into a blue-green beauty with black spots, red fins, and a light-blue slash across an orange face. Males shine in light blue with bold blue stripes and green accents.
 
Other tidbits: Can grow up to a whopping 60cm or so! Distributed throughout the East Indian Ocean, West Indian Ocean, Australia, and Indonesia.
 
Bare bones must know: Live-rock fish-only system, or fish-only system.