Red Tail Cardinalfish

Red Tail Cardianalfish (Ostorhinchus aureus)

The Red Tail Cardinalfish (Apogon sp.) is native to the shallow and mid-level reefs of the Philippines. These fish hide among caves and rockwork during the day and hunt small benthic invertebrates at night. Their red coloration helps them avoid detection by both predators and prey. They reach a maximum size of 3 inches and thrive in aquariums of at least 20 gallons. Ideal for reef tanks, they should be fed a varied carnivorous diet. Cardinalfish should not be housed with larger predatory fish or small, prized invertebrates.

## The Red Tail Cardinal (Apogon sp.) – A Captivating Addition to Saltwater Marine Aquariums

The Red Tail Cardinal, scientifically known as Apogon sp., is a popular and captivating addition to saltwater marine aquariums. Native to the Indo-Pacific region, this species is favored by hobbyists for its vibrant coloration and peaceful demeanor. Understanding its specific care requirements is crucial for maintaining a thriving marine environment.

### Habitat of the Red Tail Cardinal

In the wild, the Red Tail Cardinal inhabits coral reefs and shallow coastal waters, where it finds abundant hiding spots among coral branches and rocky crevices. Replicating this environment in captivity is essential for the well-being of the species.

### Reef Safety of the Red Tail Cardinal

The Red Tail Cardinal is considered reef-safe, making it suitable for reef aquariums. Its peaceful nature and lack of interest in coral polyps contribute to its compatibility with coral communities.

### Size and Lifespan of the Red Tail Cardinal

Red Tail Cardinals typically grow to 2 to 3 inches, making them well-suited for smaller to medium-sized aquariums. With proper care, they can live up to 5 years in captivity.

### Diet of the Red Tail Cardinal in Captivity

Maintaining a balanced diet is crucial for the health of Red Tail Cardinals. They are omnivores and thrive on a high-quality flake or pellet food diet supplemented with live or frozen brine shrimp, mysis shrimp, and other small marine invertebrates.

### Aquaculture and Availability of the Red Tail Cardinal

Red Tail Cardinals are currently aquacultured, which contributes to their availability in the aquarium trade. This sustainable practice reduces the impact on wild populations and ensures healthier specimens for hobbyists.

### Compatibility with Other Fish and Invertebrates

The Red Tail Cardinal’s peaceful nature makes it an excellent choice for community aquariums. They coexist well with other non-aggressive species, both fish and invertebrates, fostering a harmonious tank environment.

### Sexual Dimorphism of the Red Tail Cardinal

Red Tail Cardinals do not exhibit significant sexual dimorphism, making distinguishing between males and females based on physical characteristics challenging.

### Juvenile to Adult Coloration Changes in the Red Tail Cardinal

As juveniles, Red Tail Cardinals display subdued colors that intensify as they mature. The adult coloration includes a vibrant red or orange tail, contrasting with the silver body adorned with faint stripes.

### Temperament of the Red Tail Cardinal

Known for their calm and non-aggressive temperament, Red Tail Cardinals are an ideal addition to community aquariums. They tend to form loose schools, adding to the visual appeal of the tank.