Doctorfish Tang Care Guide
Acanthurus chirurgus · Saltwater Tang
What Doctorfish Tang look like
The Doctorfish Tang, scientifically known as Acanthurus chirurgus, exhibits a streamlined, oval body shape that can reach a maximum adult size of approximately 12 inches (30 cm). This species is characterized by its vibrant blue to bluish-gray coloration, with a distinctive yellow tail and a prominent yellow stripe running diagonally from the eye to the base of the tail. Sexual dimorphism is subtle, with males typically displaying slightly larger and more elongated dorsal fins. A notable defensive adaptation is the presence of sharp, retractable spines located on either side of the tail, which can inflict painful wounds when threatened. Additionally, the Doctorfish Tang possesses a lateral line system that aids in detecting water movements, and its dentition is adapted for grazing on algae, featuring small, comb-like teeth.
Behavior & temperament
Doctorfish Tangs are known for their highly social behavior, often forming schools in the wild, which can consist of dozens of individuals. They typically inhabit the mid to upper levels of the water column, where they engage in foraging activities primarily focused on algae. Breeding behavior includes territorial displays and courtship rituals, where males may exhibit aggressive posturing to attract females. Their temperament can range from moderately aggressive to territorial, particularly during the breeding season or when establishing dominance within a group.
Diet & feeding
In the wild, Doctorfish Tangs are primarily herbivorous, feeding on a diet rich in algae and marine vegetation. In captivity, they require a varied diet that includes high-quality marine algae, spirulina, and specially formulated herbivore pellets to maintain optimal health.
Behind the name
The genus name 'Acanthurus' is derived from the Greek words 'akanthos', meaning 'thorn', and 'oura', meaning 'tail', referring to the sharp spines on the tail. The species name 'chirurgus' comes from the Greek word 'chirurgos', meaning 'surgeon', alluding to the fish's scalpel-like tail spines.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Doctorfish Tang?
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