Longhorn cowfish

Snapshot: This cowfish sports a yellow to olive base, adorned with striking white and bluish spots. 
 
Other tidbits: Can grow up to a whopping 46cm or so! Distributed throughout the Indo-Pacific region from the Red Sea to Australia.
 
Bare bones must know: Live-rock fish-only system, or fish-only system. Use a container, not a net, for transfer to prevent stress. Handle with extreme care, its defense mechanism, is lethal. When threatened or when it dies, it releases a toxin deadly to other tank mates. Best kept in its own aquarium. Larger sized aquarium needed.