Flashing Tilefish

Snapshot: This absolute stunner is a reef rockstar with a wild trick up its sleeve — it can switch up its colors in a flash! It flips from yellow to blue-green to pink and back again like someone’s playing with the lights.
 
Other tidbits: Can grow up to 13cm or so. Distributed throughout the Indo-West Pacific, from the Philippines south to Indonesia.
 
Bare bones must know: Live-rock fish only system, or reef aquarium with care.