Picasso triggerfish Rhinecanthus aculeatus
The Lagoon triggerfish (Rhinecanthus aculeatus), also known as the blackbar Triggerfish, the Picasso triggerfish, or the Picassofish, is a triggerfish, up to 30 cm in length, found on reefs in the Indo-Pacific region. This species has been studied in a range of research contexts, from locomotion to color vision research. Lagoon triggerfish live in the reefs and sandy areas of coral reefs, where they eat just about anything that comes along, mostly including invertebrates and reef algae.