The Assasi Trigger (Rhinecanthus assasi), also known as the Picasso Triggerfish, is a striking species known for its bold color patterns and aggressive nature. Its body is predominantly a light cream color with intricate blue, yellow, and black markings around the face and fins, making it one of the most visually appealing triggerfish in the marine hobby. This species is native to the coral reefs of the Indo-Pacific, where it uses its powerful jaws to feed on a variety of meaty foods.

As a carnivore, the Assasi Trigger should be fed a diet that includes chopped shrimp, squid, and other marine-based meats. Its strong jaws allow it to crush shells, so it will happily consume small crustaceans and mollusks in the aquarium. Because of its aggressive temperament, it is best housed with similarly aggressive or large, robust fish that can tolerate its dominant behavior.

While the Assasi Trigger is not considered reef-safe, it may be kept in reef tanks with caution. It can damage corals or invertebrates, particularly if it decides to snack on crustaceans or disturb the substrate while foraging. It is important to monitor this fish closely if housed in a reef environment.

Due to its size and activity level, the Assasi Trigger requires a large tank of at least 125 gallons. It thrives in a well-maintained aquarium with plenty of hiding spots and open swimming spaces. Be mindful when adding new fish, as the Assasi Trigger can be territorial and may not welcome new tankmates easily.

In summary, the Assasi Trigger is a stunning and charismatic fish that adds a lot of personality to a marine aquarium. However, its aggressive nature and dietary needs mean it is best suited for experienced aquarists with large tanks and other assertive tankmates. If housed in a reef setup, proceed with caution, as it can pose a risk to corals and invertebrates.