Common name: Threespot squirrelfish

General information

The Longspine Squirrelfish, Sargocentron cornutum, is a striking species known for its vibrant red coloration and elongated spines on the dorsal fin. This nocturnal fish is a member of the Holocentridae family and is often found hiding in crevices during the day. It has a distinctive sound-producing mechanism that involves the contraction and relaxation of muscles attached to the swim bladder, which can be heard by divers and is used for communication among individuals.

Care

Longspine Squirrelfish are relatively hardy and can be a good choice for intermediate aquarists. They require an aquarium with plenty of hiding places and a peaceful environment, as they can be shy and are easily outcompeted for food by more aggressive tank mates. A varied diet of meaty foods such as shrimp, squid, and fish flesh is essential for their health.

Reproduction

In the wild, Longspine Squirrelfish are known to form spawning aggregations, releasing eggs and sperm into the water column where fertilization occurs. In the home aquarium, breeding is less common, but with careful attention to water quality and diet, it is possible to encourage spawning behavior.

Habitat

Sargocentron cornutum is found in the Indo-Pacific region, from the Red Sea and East Africa to the Line Islands and Tuamoto Islands, north to southern Japan, and south to New Caledonia. They prefer reef environments and are typically found at depths ranging from shallow waters to about 55 meters deep.