Ostorhinchus compressus
The Ochre Striped Cardinalfish is a peaceful and hardy reef fish appreciated for its distinctive body shape, attractive markings, and suitability for community aquariums. Adults display a laterally compressed silvery body accented by dark vertical bars and subtle yellow to bronze highlights on the fins and face. Their streamlined profile allows them to move effortlessly through branching corals and rocky crevices, where they spend much of their time seeking shelter during daylight hours. An aquarium with abundant live rock, caves, overhangs, and coral structures will help recreate their natural environment and provide a sense of security. This species typically reaches about 3 inches (7.5 cm) in length and is best maintained in aquariums of 20 gallons or larger. Ochre Striped Cardinalfish are generally peaceful and can often be kept singly, in pairs, or in small groups when adequate space and hiding places are available. In the wild, Ostorhinchus compressus inhabits sheltered coral reefs, lagoons, and coastal reef environments throughout the Indo-Pacific region, including Indonesia, the Philippines, Papua New Guinea, northern Australia, and surrounding island groups. They are commonly found among branching corals and reef structures, where they remain protected from predators while feeding on small planktonic organisms. Carnivorous by nature, this species thrives on a varied diet consisting of mysis shrimp, enriched brine shrimp, copepods, finely chopped seafood, and other high-quality frozen or prepared marine foods. Regular feedings support healthy growth, vibrant coloration, and long-term vitality. Considered reef-safe, the Ochre Striped Cardinalfish poses no threat to corals or ornamental invertebrates and makes an excellent addition to peaceful reef aquariums, where its calm demeanor and attractive appearance can be fully appreciated.
