Description
Picasso Triggerfish – Rhinecanthus assasi
Rhinecanthus assasi, known as the Picasso Triggerfish or Arabian Picasso Trigger, is a bold and colorful species named for its abstract, painterly markings of blue, yellow, and black. Native to the coral reefs of the Red Sea and Western Indian Ocean, it is both intelligent and territorial, displaying a curious and alert personality. With proper space and environment, it becomes an engaging centerpiece fish that showcases the artistry of marine life.
Origin: Red Sea and Western Indian Ocean
Depth: 2–30 m (6–100 ft)
Lighting: Moderate to high (accentuates facial pattern and vivid coloration)
Flow: Moderate with open swimming areas and rockwork for territory establishment
Tank Placement: Middle to lower water column; requires caves and crevices for shelter
Temperature: 75–80°F (24–27°C)
Salinity: 1.022–1.026 SG
pH: 8.1–8.4
Diet: Carnivorous – feeds on crustaceans, mollusks, and marine meat; accepts shrimp, squid, and prepared triggerfish diets
Temperament: Semi-aggressive; territorial but intelligent and interactive with caretakers
Size: Up to 30 cm (12 inches)
Care Level: Intermediate – hardy and adaptable but requires a large aquarium (minimum 500 L / 130 gal)
Compatibility: Best kept singly or with other robust species; not suitable for small reef fish or ornamental invertebrates
