Striped Bristletooth Care Guide
Ctenochaetus striatus · Saltwater Tang

What Striped Bristletooth look like
The Striped Bristletooth, or Ctenochaetus striatus, exhibits a streamlined body typical of the Acanthuridae family, reaching a maximum adult size of approximately 7 inches (18 cm). Its coloration is characterized by a series of prominent, horizontal blue and yellow stripes that run along the body, providing a striking contrast against its overall dark brown to grayish hue. Sexual dimorphism is subtle, with males generally exhibiting slightly larger body sizes and more pronounced coloration during breeding periods. This species possesses a unique bristle-like structure on its teeth, which aids in scraping algae from substrates, and features a small, sharp spine at the base of the tail, serving as a defensive adaptation against predators. The dorsal fin is elongated and continuous, while the anal fin mirrors this structure, contributing to its agile swimming capabilities.
Behavior & temperament
The Striped Bristletooth is a social fish often found in small groups, displaying a well-defined social hierarchy. They are predominantly mid-level swimmers, frequently seen foraging in the reef's algal patches. Breeding behavior involves courtship displays where males exhibit vibrant colors and engage in circling movements around females. Their temperament is generally peaceful, although they may exhibit territorial aggression towards conspecifics, particularly during breeding seasons. This species is known for its efficient grazing behavior, often seen scraping algae from rocks and coral surfaces, which is crucial for maintaining the health of coral reefs.
Diet & feeding
In the wild, the Striped Bristletooth primarily feeds on benthic algae and diatoms, utilizing its specialized dentition for scraping. In captivity, it requires a diet rich in marine algae, spirulina, and high-quality herbivore pellets to thrive.
Behind the name
The genus name 'Ctenochaetus' derives from the Greek words 'ktenos', meaning 'comb', and 'chaetos', meaning 'hair', referring to the bristle-like teeth. The species name 'striatus' is Latin for 'striped', describing the fish's distinctive coloration.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
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