Mulleri Butterflyfish

Snapshot: The Mulleri Butterflyfish flaunts bold black vertical bands on a silver body, seamlessly fading into a rust-colored tail. Its long, narrow nose and mouth are perfect tools for hunting in crevices and holes for food.
 
Other tidbits: Can grow up to 18cm or so. Endemic to the reefs of Australia. 
 
Bare bones must know: Best suited to a live-rock fish only system. Top-notch water quality.