Whitecheek Bristletooth Care Guide

Ctenochaetus flavicauda · Saltwater Tang

Whitecheek Bristletooth
AI-generated illustration of Whitecheek Bristletooth
Adult size
~7.1″ (18 cm)
Suggested tank
125+ gal
Placement
Mid to Lower
Flow
Medium

What Whitecheek Bristletooth look like

The Whitecheek Bristletooth (Ctenochaetus flavicauda) exhibits a distinctive body shape typical of the Acanthuridae family, characterized by a laterally compressed, oval form. Adults can reach a maximum size of approximately 7 inches (18 cm) in standard length. This species displays sexual dimorphism, with males often exhibiting slightly larger body sizes and more pronounced coloration than females. The most notable morphological feature is the presence of bristle-like structures on the upper jaw, which serve a feeding function. The coloration is primarily a deep blue to grayish hue, with a prominent white cheek patch and a yellow tail fin, which is particularly vibrant in mature individuals. The dorsal fin is elongated and features a series of spines, while the anal fin is similarly structured, providing stability during swimming. Defensive adaptations include sharp spines located at the base of the tail, which can be deployed when threatened.

Behavior & temperament

The Whitecheek Bristletooth is generally a peaceful and social species, often found in small groups or pairs within its natural habitat. It occupies the mid to lower levels of the reef, frequently grazing on algae and detritus. Breeding behavior is characterized by seasonal spawning, where males display courtship rituals to attract females. This species exhibits a non-aggressive temperament, making it suitable for community tanks; however, it may become territorial during breeding periods or when competing for food resources. The Whitecheek Bristletooth is known for its efficient grazing behavior, utilizing its bristle-like teeth to scrape algae off substrates, which is essential for maintaining reef health.

Diet & feeding

The Whitecheek Bristletooth is primarily herbivorous, feeding on a diet of algae and detritus in the wild. In captivity, it requires a varied diet that includes high-quality marine algae, spirulina, and herbivore pellets to ensure optimal health.

Behind the name

The genus name 'Ctenochaetus' is derived from the Greek words 'ktenos' meaning 'comb' and 'chaetos' meaning 'hair', referring to the bristle-like teeth. The species name 'flavicauda' is derived from Latin, where 'flavi' means 'yellow' and 'cauda' means 'tail', describing the species' distinctive yellow tail fin.

Plan your tank

Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.

Keeping Whitecheek Bristletooth?

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