Saltcorner
By Bob Goemans
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Sargocentron

Sargocentron cornutum

(Bleeker, 1854)

Threespot Squirrelfish

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Indo-West Pacific Ocean: Indonesia, Philippines, Solomon Islands, and the Great Barrier Reef.

Size: 10 inches (25 cm)

Natural Environment: Inhabits caves on outer reef drop-offs at depths between 25 - 150 feet (8 - 45 m) during daylight hours and feeds at night mainly on crabs and shrimp.

General Husbandry: Rarely seen in the trade, having a reddish colored body with white horizonal stripes and black patches on the cadual peduncle, dorsal and anal fins.

Best maintained in aquariums with several caves/hiding areas large enough to house the adult-sized specimen, as those in this family grow to adulthood quite fast. The aquarium should also be dimly lit, as this is a nocturnal species, preferring to hide throughout daytime hours and feed at night. If maintained in a brightly lit aquarium, i.e., reef aquarium, it should also have sufficient caves as noted above, but will be far less visible in daylight hours. Tankmates must be large enough not to be eaten, as they will also consume smaller fishes.

Requires a meaty diet such as enriched chopped fish or shrimp flesh, mysis, frozen brine shrimp, and/or frozen carnivore foods with one or two feedings per day.

May be difficult to feed in the early days in the aquarium due to its nocturnal feeding habits, and if so, live foods, e.g., live enriched brine shrimp, grass shrimp, black worms (Lumbriculus variegatus), baby mollies and/or guppies should be offered. Over time, it will learn to accept frozen foods like mysis, krill and brine shrimp more readily when offered to others in the aquarium.

Taxonomy:

    Order: Beryciformes

    Suborder: Holocentroidei

    Family: Holocentridae

    Genus: Sargocentron

FYI: Best maintained in small groups if the aquarium is large enough.

Will eat ornamental shrimp.

Sensitive to tapping on aquarium side panels.

Has spines on their head and gills, which can come entangled in nets and also a large preopercular spine, which can inflict a wound if mishandled by the aquarist.

Experience Level: Intermediate

Temperament: Peaceful

Diet: Carnivore

Coral Safe: Yes

Fish Safe: With caution

Invertebrate Safe: With caution

Acclimation Time: 30 minutes+

Aquarium Environment: Reef or fish only aquarium

Tankmates: Peaceful

Minimum Tank Size: 100 gallons

Temperature Range: 72 - 80°F (22 – 27°C)

Specific Gravity: 1.020 - 1.026

pH: 8.0 - 8.5

 Sargocentron cornutum (Threespot Squirrelfish)
Photo © John Randall
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Tunze