Common name: Roughlip cardinalfish

General information

Robins' Cardinalfish (Apogon robinsi) is a small and peaceful marine fish that is not commonly found in the aquarium trade but can be a unique addition to a reef or fish-only tank. It is named after the ichthyologist Dr. Bruce B. Collette, who used the pen name 'Robins' in honor of his colleague, Clarence Robins.

This species is known for its distinctive coloration, with a silvery body and a striking black vertical bar through the eye. It is a nocturnal species, hiding during the day and becoming more active at night when it hunts for food.

Care

Robins' Cardinalfish requires a well-established aquarium with plenty of hiding places among live rock or coral branches. They are relatively hardy but should be kept in a peaceful community as they can be easily outcompeted for food by more aggressive fish. A varied diet of small meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood is recommended.

Reproduction

Like many cardinalfish, Apogon robinsi is a mouthbrooder. The male will carry the fertilized eggs in his mouth until they hatch, protecting them from potential predators and ensuring a higher survival rate for the offspring. This fascinating reproductive behavior can sometimes be observed in the home aquarium.

Habitat

Apogon robinsi is found in the Western Atlantic, from Florida and the Bahamas to Brazil. It prefers shallow coastal waters and coral reefs, often hiding in crevices or among the branches of gorgonians during the day.