Arabian Picasso Triggerfish (Rhinecanthus assasi) Care Guide
Rhinecanthus assasi is a Red Sea and Persian Gulf triggerfish that inhabits shallow reefs and feeds on benthic invertebrates.
Overview
Rhinecanthus assasi, the Arabian picassofish or assasi triggerfish, is a marine fish of the family Balistidae. It is tan above and white below, with blue stripes between and below the eyes. FishBase records a maximum total length of 30.0 cm.
Taxonomy
- Family: Balistidae
- Genus: Rhinecanthus
- Scientific name: Rhinecanthus assasi
- Described by Forsskål in 1775
Habitat
The species occurs in the western Indian Ocean from the Red Sea to the Gulf of Oman and the Persian Gulf. It inhabits shallow sandy and rubble areas of coral reefs; juveniles occupy reef flats. According to FishBase, preferred temperatures range from about 24.7 to 29.3 °C.
Tank requirements
- Minimum tank volume: 400 L (about 106 gal)
- Temperature: 24-26 °C (75-79 °F)
- pH: 8.1-8.4
- Carbonate hardness / GH range: 8-12 °dGH
- Lifespan: 10-20 years
Diet
Rhinecanthus assasi is carnivorous, with a FishBase trophic level of 4.5. It feeds on benthic invertebrates. In captivity it accepts meaty marine foods, including hard-shelled items, offered about twice daily.
Compatibility
This is an aggressive, non-schooling species that swims in the middle water column. It is not reef-safe and is best kept with other large, robust fish such as large angels and large tangs. Ornamental shrimp, snails, crabs and small fish should be avoided, as the species preys on invertebrates.
Breeding
Rhinecanthus assasi is an egg-layer. Captive breeding is regarded as expert-level and is rarely achieved in home aquaria.
Conservation status
IUCN Red List: Least Concern (assessed 2022). FishBase rates its fishing vulnerability as low.