Red Coris Wrasse

Snapshot: Also known as the Clown Wrasse, Red Labrid, or Yellowtail Coris Wrasse. As juveniles, they are bright orange with tiger-like stripes. Adults transform into a dazzling mix of speckled blue bodies, rainbow fins, and an orange face with green stripes. Males have a light green streak above the anal fin for extra flair.
 
Other tidbits: Can grow up to a whopping 38cm or so! Distributed throughout the Indo-Pacific, Hawaiian regions and to the Red Sea.
 
Bare bones must know: Live-rock fish-only system, or fish-only system. Thick, sandy substrate needed.