Common name: ocean surgeon
General information
The Ocean Surgeonfish, scientifically known as Acanthurus bahianus, is a vibrant and active member of the reef community. It is often confused with its Pacific cousin, the Blue Tang (Paracanthurus hepatus), made famous by the character Dory in the movie 'Finding Nemo'. However, the Ocean Surgeonfish can be distinguished by its more uniform coloration and less pronounced scalpel-like spine on the caudal peduncle.
Details
- Recommended minimum tank volume
- 300 liter (79 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 24 to 27 °C (75 to 81 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 39 cm (1′3″)
- Care level
- Moderate to easy Needs ample swimming space
- Diet
- Herbivore Algae-based diet; may accept flakes
- Social
- Solo Territorial; best kept alone
- Reefsafe
- Yes
- Aggression
- Semi aggresive May be aggressive to similar species
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerciformesPerciformes
- FamilySurgeonfishAcanthuridae
- GenusSurgeonfishAcanthurus
- Speciesocean surgeonAcanthurus bahianus Castelnau, 1855
- SynonymsAcanthurus tractus Poey, 1860Acronurus nigriculus Poey, 1875Hepatus bahianus (Castelnau, 1855)Teuthis bahianus (Castelnau, 1855)Teuthis tractus (Poey, 1860)
Care
Acanthurus bahianus is a hardy species that adapts well to life in captivity, provided it is given ample space to swim and a diet rich in marine algae and vegetable matter. They are known to graze on algae throughout the day, so a well-established aquarium with live rock for grazing is beneficial. They can also be fed with high-quality dried seaweed and algae-based prepared foods.
Reproduction
In the wild, Ocean Surgeonfish spawn in groups during specific times of the year, often around the full moon. In the home aquarium, breeding is rare, but with optimal conditions and a large enough tank, it is possible to observe courtship behaviors.
Habitat
The Ocean Surgeonfish is native to the Western Atlantic, from Florida and the Gulf of Mexico to Brazil, including the Caribbean Sea. It is commonly found in shallow reefs and seagrass beds, where it grazes on algae. In the aquarium, they require a large tank with plenty of open swimming space and a strong current to mimic their natural habitat.