Assasi Trigger - Red Sea

Rhinecanthus assasi

(0 Reviews)

Assasi Trigger - Red Sea

Assasi Trigger - Red Sea

Rhinecanthus assasi

(0 Reviews)

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Assasi Trigger - Red Sea Care Facts

Care Level: Easy
Temperament: Aggressive
Diet: Carnivore
Origin: Western Indian Ocean
Acclimation Time: 3+ hours
Reef Safe: No
Minimum Tank Size: 150 gallons
Max Size: 11 inches

The Assasi Triggerfish (Rhinecanthus assasi) is also known as the Arabian Picasso Triggerfish; not to be confused with the Picasso Triggerfish (Rhinecanthus aculeatus), has a beige dorsal section with a white underbelly. It also has blue and black stripes between the eyes, vibrant yellow fins, and black streaks from the mouth to pectoral fin, as well as stripes at the base of the caudal fin. They spend their time in shallow waters and stony reefs searching for invertebrates and crustaceans. They typically feed on worms in the sand, as well as urchins and smaller fish. They reach a maximum size of 11 inches and should be kept with fish of similar size and temperament. They may damage coral, so they are recommended for fish-only systems.  

Assasi Triggerfish (Rhinecanthus assasi) Care Guide

This comprehensive guide offers vital information for successfully maintaining the Assasi Triggerfish (Rhinecanthus assasi) in your saltwater marine aquarium. We will cover various aspects, including habitat, reef compatibility, size, lifespan, dietary needs in captivity, aquaculture availability, compatibility with other marine species, sexual dimorphism, juvenile to adult coloration changes, temperament, tank requirements, and specific water conditions. Furthermore, we will introduce common names for this species and recommend five compatible tank mates. Finally, we will explain the advantages of selecting the Assasi Triggerfish from

Assasi Triggerfish Habitat

The Assasi Triggerfish, scientifically known as Rhinecanthus assasi, is a captivating addition to your saltwater marine aquarium. This informative product description will provide essential information for hobbyists and potential buyers about keeping the Assasi Triggerfish.

Reef Compatibility of Assasi Triggerfish

It is important to note that the Assasi Triggerfish is not considered reef-safe. These fish are renowned for their propensity to nip at and even consume various invertebrates, including corals, crustaceans, and smaller ornamental shrimp. Due to their disruptive nature, caution is advised when considering this species for a reef aquarium.

Size and Lifespan of Assasi Triggerfish

Assasi Triggerfish can reach sizes of up to 10-12 inches (25-30 centimeters) in length. In terms of lifespan, with proper care, they can live for 5 to 10 years in a well-maintained aquarium.

Diet in Captivity for Assasi Triggerfish

In captivity, Assasi Triggerfish have an omnivorous diet. They require a diverse diet that includes high-quality pellets, frozen foods, and live or fresh foods such as small fish and various invertebrates. Providing a varied diet is essential to meet their nutritional needs.

Aquaculture and Availability of Assasi Triggerfish

Currently, Assasi Triggerfish are not available through aquaculture. The majority of specimens available in the aquarium trade are wild-caught. Therefore, it's important to source them from reputable suppliers who prioritize sustainable collection methods to ensure the ethical treatment of marine species. is committed to offering ethically sourced marine specimens for hobbyists.

Compatibility with Other Fish and Invertebrates for Assasi Triggerfish

The Assasi Triggerfish is known for its territorial and aggressive nature. This makes them less compatible with other fish species, especially those of similar size and temperament. In a mixed-species aquarium, they may exhibit aggressive behavior, leading to harm or even the death of tank mates. It is generally recommended to house them in a species-specific aquarium or with larger, equally assertive tank mates.

Sexual Dimorphism of Assasi Triggerfish

The Assasi Triggerfish does not exhibit significant sexual dimorphism. Both males and females share similar physical characteristics and coloration.

Juvenile to Adult Coloration Changes of Assasi Triggerfish

Juvenile Assasi Triggerfish display vibrant blue and yellow colors with striking patterns on their fins and bodies. As they mature into adults, they undergo significant color changes, typically displaying darker, more subdued colors.

Tank Requirements for Assasi Triggerfish

To ensure the well-being of your Assasi Triggerfish, you need to provide a spacious tank with a minimum size of 150 gallons (approximately 473 liters). These fish require plenty of swimming space and territories to establish their dominance. You should include rocky structures and hiding spots in the aquarium to mimic their natural habitat. Remember that Assasi Triggerfish are known for rearranging decorations, so secure them properly to prevent damage.

Water Conditions for Assasi Triggerfish

Maintaining stable water conditions is crucial for Assasi Triggerfish. The recommended parameters include a pH level of 8.1 to 8.4, a salinity level of 1.020-1.025, and a water temperature range of 75-80°F (24-27°C). Adequate water flow is essential to ensure proper oxygenation and waste removal.

Common Names for Assasi Triggerfish

The Assasi Triggerfish is also commonly known as the Arabian Picasso Triggerfish and Assasi Picasso Triggerfish.

Compatible Tank Mates for Assasi Triggerfish

When considering tank mates for the Assasi Triggerfish, choosing species that can withstand their territorial and aggressive behavior is essential. Here are five compatible options:

1. Emperor Angelfish (Pomacanthus imperator)

2. Large Parrotfish (Scarus species)

3. Clown Triggerfish (Balistoides conspicillum)

4. Harlequin Tuskfish (Coerodon fasciatus)

5. Niger Trigger (Odonus niger)

Why Choose the Assasi Triggerfish from

Selecting the Assasi Triggerfish from ensures that you receive healthy and acclimated specimens for your aquarium. Our commitment to ethical sourcing and the well-being of marine species makes us a trusted choice for marine enthusiasts.

In conclusion, the Assasi Triggerfish is a unique and captivating addition to your saltwater marine aquarium. However, their aggressive nature and reef incompatibility make them more suitable for experienced hobbyists who can provide the necessary care and tank conditions. By following the guidelines in this care guide, you can enjoy the vibrant personality of the Assasi Triggerfish while ensuring the well-being of your entire marine community.

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