Striped Squirrelfish Care Guide
Sargocentron xantherythrum · Saltwater Squirrelfish

What Striped Squirrelfish look like
The Striped Squirrelfish (Sargocentron xantherythrum) exhibits a laterally compressed body that can reach a maximum adult size of approximately 25 cm (10 inches) in standard length. Its distinctive morphology includes a bright red to orange coloration with prominent vertical white stripes, which serve as a form of disruptive coloration against the reef backdrop. The large, expressive eyes are adapted for nocturnal vision, and the mouth is equipped with sharp, conical teeth that facilitate the capture of prey. Sexual dimorphism is minimal, though males may exhibit slightly larger dorsal fins. Defensive adaptations include a robust body and the ability to retreat into crevices during the day, utilizing their spiny dorsal fin as a deterrent against predators. The lateral line system is well-developed, aiding in the detection of water movements and potential threats.
Behavior & temperament
Striped Squirrelfish are primarily nocturnal and exhibit a social hierarchy, often forming loose aggregations around reef structures during the night. They are known to establish territories, with dominant individuals displaying more aggressive behaviors towards intruders. During breeding, males engage in courtship displays that include flashing their fins and swimming in circles around females. Their temperament can range from shy to moderately aggressive, particularly when defending their territory. They are also known to exhibit a unique behavior of retreating into crevices or under ledges during the day, remaining motionless until nightfall when they become more active hunters.
Diet & feeding
In the wild, Striped Squirrelfish are carnivorous, primarily feeding on small crustaceans, fish, and other invertebrates. In captivity, they require a varied diet consisting of high-quality frozen or live foods, such as shrimp, mysis, and other meaty offerings to ensure optimal health.
Behind the name
The genus name 'Sargocentron' is derived from the Greek words 'sargos' meaning 'a type of fish' and 'kentron' meaning 'spine' or 'sting', while the species name 'xantherythrum' combines the Greek 'xanthos' meaning 'yellow' and 'erythros' meaning 'red', referring to the fish's coloration.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Striped Squirrelfish?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.



