Common name: twobelt cardinalfish

General information

The Threadfin Cardinalfish, Apogonichthyoides taeniatus, is a small and peaceful marine fish that is well-suited for community reef aquariums. This species is known for its striking appearance, with a silver body accented by vertical red stripes and elongated fin filaments that give it a delicate, thread-like appearance.

In the wild, these fish are often found in schools, hovering in sheltered lagoons and near reef structures. They are nocturnal by nature, becoming more active at night when they venture out to feed.

Care

Threadfin Cardinalfish are relatively easy to care for, making them a suitable choice for both beginner and advanced aquarists. They thrive in a well-established aquarium with plenty of hiding places and a peaceful community. These fish are not aggressive and can be kept with a variety of other non-predatory tank mates.

A varied diet of small meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood will help maintain their health and coloration. It's important to feed them in the evening or at night when they are most active.

Reproduction

Like many cardinalfish, Apogonichthyoides taeniatus exhibits mouthbrooding behavior. The male will incubate the eggs in his mouth until they hatch, providing protection from predators. This fascinating reproductive strategy can sometimes be observed in the home aquarium, offering a unique spectacle for the aquarist.

Habitat

Threadfin Cardinalfish are native to the Indo-Pacific region, where they are typically found in shallow, calm waters with ample reef structure for shelter. They prefer areas with low light and will often retreat to caves or overhangs during the day.