Tomini Bristletooth Care Guide
Ctenochaetus tominiensis · Saltwater Tang
What Tomini Bristletooth look like
The Tomini Bristletooth, or Ctenochaetus tominiensis, exhibits a robust, oval body shape typical of the Acanthuridae family, with a maximum adult size of approximately 7 inches (18 cm). Its coloration is predominantly a deep blue to grayish hue, adorned with intricate patterns of lighter blue or yellow spots that provide effective camouflage among the reef substrate. Notable morphological features include a series of small, bristle-like spines along the upper jaw, which are adapted for scraping algae off surfaces, and a distinctive, laterally compressed tail fin that aids in agile swimming. Sexual dimorphism is minimal, though males may exhibit slightly more vibrant coloration during breeding displays. Defensive adaptations include sharp, retractable spines located on the caudal peduncle, which can inflict painful wounds on potential predators.
Behavior & temperament
The Tomini Bristletooth is primarily a diurnal species, often found in small groups or pairs, exhibiting a social hierarchy where dominant individuals establish territories within the reef. They are known to inhabit the mid to lower levels of the water column, frequently seen grazing on algae-covered surfaces. Breeding behavior involves courtship displays characterized by synchronized swimming and color changes, with males displaying more vibrant hues to attract females. Their temperament is generally peaceful, though they can exhibit territorial aggression towards conspecifics or similar species when space is limited.
Diet & feeding
In the wild, the Tomini Bristletooth primarily feeds on benthic algae and detritus, utilizing its specialized teeth to scrape food from rocks and coral surfaces. In captivity, it requires a diet rich in marine algae, spirulina, and high-quality herbivore pellets to maintain optimal health.
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 'tominiensis' refers to its origin from Tomini Bay in Indonesia.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Tomini Bristletooth?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.
