Yellowfin Bristletooth (Ctenochaetus flavicauda)
Fish in the family Acanthuridae. Moderate care. Reef Safe.
Quick facts
Appearance
Ctenochaetus flavicauda is a small to medium tang with a brown or olive-gray body and a distinctive bright yellow caudal (tail) fin, which gives the species its common name. The fish has a somewhat oval body shape with a small mouth adapted for feeding on algae and detritus. A characteristic row of bristle-like teeth is visible along the jaws, typical of the Ctenochaetus genus.
Diet and feeding
Feed primarily on dried seaweed (nori), spirulina flakes, and high-quality herbivorous pellets 1–2 times daily. Supplement with occasional blanched vegetables. Ensure adequate grazing opportunities on live rock and natural algae growth in the aquarium.
Difficulty and care for the Yellowfin Bristletooth
Moderate difficulty. The Yellowfin Bristletooth is hardier than many tangs but requires consistent water quality, adequate space to reduce aggression, and a reliable supply of vegetable matter to maintain health and prevent malnutrition.
Common health issues
Marine ich, Fin rot, Swim bladder disorder, Bacterial septicemia, Velvet disease
Origin and habitat
Indo-Pacific region from the Red Sea and East Africa through Indonesia to Hawaii and the central Pacific. Found in coral reef environments at depths typically between 10–200 meters.
Log Yellowfin Bristletooth in your reef tank
Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Yellowfin Bristletooth alongside everything else in your reef.
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