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White Tail Bristletooth Tang (Ctenochaetus flavicauda / Ctenochaetus binotatus (species varies by common usage))

White Tail Bristletooth Tang

Ctenochaetus flavicauda / Ctenochaetus binotatus (species varies by common usage)
Family
Tang
Care level
Beginner
Temperament
Semi-aggressive
Reef safe
Reef safe
Max size
17 cm
Min tank
300 L · 79 gal
Origin
Indo-Pacific
Diet
Herbivore
Food
Nori, Marine algae, Herbivore pellets, Spirulina

Overview

The White Tail Bristletooth Tang is a compact Ctenochaetus species with a dark brown-to-black body, fine light speckling, and a distinctive pale white tail that gives it its common name. Like other bristletooth tangs it uses fine, comb-like teeth to sift detritus and diatoms off rock and sand rather than grazing large algae leaves.

It's one of the hardier and more forgiving tangs available, tolerating a range of tank sizes better than many larger Acanthurus species, and is a solid clean-up contributor as well as an attractive display fish.

Given adequate space and an established tank, it's a low-maintenance, long-lived addition well suited to keepers wanting a manageable first tang.

Compatibility

White Tail Bristletooth Tangs can show territorial aggression toward other tangs, particularly similarly shaped species, so care with stocking order matters in tanks with multiple surgeonfish. They're generally peaceful with unrelated community fish.

This species is fully reef safe and won't bother corals, clams, or invertebrates.

Health & quarantine

As a Ctenochaetus species this is one of the hardier tangs, though it's still susceptible to marine ich like all surgeonfish, so a minimum four-week quarantine is recommended. Good water flow and a varied diet support long-term health and colour.

Frequently asked questions

Is the White Tail Bristletooth Tang a good first tang?
Yes, it's one of the hardier tangs and a common recommendation for keepers new to tangs.
Is the White Tail Bristletooth Tang reef safe?
Yes, it's herbivorous and won't bother corals or invertebrates.
What does a White Tail Bristletooth Tang eat in a reef tank?
It naturally sifts detritus and diatoms off rock and sand, supplemented with nori, pellets and spirulina-based foods.
What tank size does a White Tail Bristletooth Tang need?
300 litres is a reasonable minimum given its moderate adult size.
Can I keep a White Tail Bristletooth Tang with other tangs?
With care — avoid other similarly shaped tangs in a smaller system to reduce territorial conflict.

Care guidance is drawn from our own experience — every fish is an individual, so treat it as a starting point, not a guarantee. Not sure if a species suits your tank? Come ask us in store. New to the terms? Read the care-terms glossary.