Powder Blue Tang

Snapshot: This surgeonfish is a showstopper with its light-blue body and electric yellow fins. 
 
Other tidbits: Can grow up to 23cm or so. Native to the waters of East Africa via the Indo-Pacific, to South-East Asia including Indonesia and the Philippines.
 
Bare bones must know: Live-rock fish-only system, or reef aquarium with plenty of swimming room.