Lubbock's Fairy Wrasse

Snapshot: The male wrasses are bursting with bright yellow and red, and accented with flashes of blue, brown, and white. Meanwhile, the females keep it cool and understated compared to their flashy counterparts. 
 
Other tidbits: Can grow up to 8cm or so. Distributed throughout Australia and Indonesian waters.
 
Bare bones must know: Live-rock fish only system or reef aquarium. Thick, sandy substrate.