Double Saddle Butterflyfish

Snapshot: This butterflyfish is dressed in crisp white with sleek black pinstripes. The back half fades into a sunny yellow, finished with a bold black tail spot. It has two dark saddle patches up top, plus dramatic eye bands.
 
Other tidbits: Can grow up to 15cm or so. Distributed throughout the East Indian Ocean, West Indian Ocean, Australia, Indonesia, East Pacific, Central/West Pacific.
 
Bare bones must know: Live-rock fish-only system. Stable, top-notch water quality.