Sailfin Tang (Zebrasoma veliferum)

Zebrasoma veliferum carries dorsal and anal fins tall enough to nearly double the fish's visible height when fully flared — a display used both to intimidate rivals and impress potential mates. Add a bold, complex striped-and-spotted pattern and this is one of the most visually dramatic tangs available, provided the tank is big enough to let that sail actually unfurl.

Care level: Moderate · Temperament: Semi-aggressive · Max size: ~16" · Min tank: 150+ gal · Diet: Herbivore, algae + herbivore pellets