Common name: Cortez Angelfish

General Information

The Cortez Angelfish, scientifically known as Pomacanthus zonipectus, is a striking marine fish popular among advanced aquarists. This species is known for its distinctive coloration and pattern, featuring a combination of vibrant blues and yellows with a unique crescent-shaped marking on its body, giving it the "Halfmoon" moniker. Native to the eastern Pacific Ocean, it is commonly found around the rocky reefs and coral-rich areas of the Gulf of California and the western coast of Mexico.

In the aquarium trade, the Cortez Angelfish is admired for its beauty and size, making it a centerpiece in large marine tanks. However, due to its specific care requirements and potential size, it is best suited for experienced hobbyists who can provide the appropriate environment and diet.

Care

Caring for the Cortez Angelfish requires a well-maintained marine aquarium with plenty of swimming space. They thrive in tanks with a minimum volume of 500 liters, allowing them to exhibit natural behaviors and reduce stress. The tank should be equipped with live rock structures to provide hiding spots and grazing surfaces. Stable water conditions with efficient filtration and regular maintenance are crucial to their health.

Diet and Feeding

The Cortez Angelfish is an omnivore with a preference for a varied diet. In the wild, they graze on algae, sponges, and small invertebrates. In captivity, their diet should include high-quality marine angelfish preparations, spirulina, mysis shrimp, and finely chopped seafood. Offering a variety of foods ensures they receive the necessary nutrients and helps maintain their vibrant coloration.

Feed them two to three times daily, ensuring portions are appropriate to avoid overfeeding and maintain water quality. Supplementing their diet with marine algae and sponge-based foods can help mimic their natural feeding habits.

Behavior and Compatibility

Cortez Angelfish are semi-aggressive, particularly as they mature. They can be territorial, especially towards other angelfish or similarly sized fish. It's advisable to keep them with other semi-aggressive or peaceful species that can hold their own in a community setting.

Due to their size and temperament, they are best kept in larger tanks where they can establish their territory without causing undue stress to tank mates. Avoid housing them with overly aggressive species or those that may outcompete them for food.

Reproduction

Breeding Cortez Angelfish in captivity is challenging and rarely achieved. They are broadcast spawners, releasing eggs and sperm into the water column. Successful breeding requires specific water conditions and a well-established pair. The fry are delicate and require specialized care, including a diet of rotifers and baby brine shrimp.

Health and Common Issues

Cortez Angelfish are generally hardy but can be susceptible to common marine diseases such as ich and marine velvet. Maintaining optimal water quality and a balanced diet is essential for preventing health issues. Regular observation for signs of stress or illness, such as changes in color or behavior, is important for early intervention.

When selecting a Cortez Angelfish, choose individuals that are active and have clear eyes and vibrant colors. Avoid fish that appear lethargic or have visible signs of disease.

Habitat

In the wild, the Cortez Angelfish inhabits rocky reefs and coral-rich areas, often found at depths ranging from 5 to 30 meters. They are distributed along the eastern Pacific, particularly around the Gulf of California and the western coast of Mexico. These environments provide ample grazing opportunities and shelter, which should be replicated in captivity to ensure their well-being.