Species Profile

Picasso Triggerfish

Rhinecanthus aculeatus

Also known as: Humuhumu Triggerfish, Lagoon Triggerfish

Triggerfishaggressive

Adult size

10″

Minimum tank

100 gal

Temperature

72–82°F

8.1–8.4

Schooling

Solitary OK

Water level

mid

Grows from juvenile

Typically sold at ~3″ and reaches 10″ over ~2 years. Plan tank size for the adult, not the fish at purchase.

Diet

Frozen mysis, krill, clams, squid, marine pellets

Notes

Striking abstract pattern of teal/blue/yellow/black lines on cream. Aggressive — bullies smaller tankmates and rearranges aquascape. Eats every invertebrate it encounters. FOWLR-only.

Build a tank →Photo credits

Photo: Arpingstone / Wikimedia Commons · Source · Public domain