Common name: Copperstriped cardinalfish

General information

The Twospot Cardinalfish, scientifically known as Ostorhinchus holotaenia, is a small and peaceful marine fish that is well-suited for the home aquarium. Its body is elongated with a pale base color, adorned with two distinct black spots - one on the middle of the body and another at the base of the caudal fin. This species is not as common in the trade as some other cardinalfish, but it is appreciated for its subtle beauty and ease of care.

Care

Ostorhinchus holotaenia is a hardy species that can adapt to a range of aquarium conditions. They prefer a well-decorated tank with plenty of hiding places and a peaceful community. These fish are nocturnal and may be shy during the day, so providing dim lighting or shaded areas can help them feel more secure. They thrive on a varied diet of meaty foods, such as mysis shrimp, brine shrimp, and finely chopped seafood.

Reproduction

Like many cardinalfish, the Twospot Cardinalfish is a mouthbrooder. The male carries the eggs in his mouth until they hatch, providing protection from predators and ensuring a higher survival rate for the offspring. This fascinating reproductive behavior can sometimes be observed in the home aquarium, offering a unique spectacle for the aquarist.

Habitat

The natural habitat of Ostorhinchus holotaenia includes coral reefs and lagoons in the Western Pacific Ocean. They are typically found in small groups or pairs, hovering near reef structures or among seagrass beds. In the wild, they are known to inhabit depths ranging from shallow waters to about 30 meters.