Common name: Greytail Angelfish

General Information

The Greytail Angelfish, scientifically known as Chaetodontoplus poliourus, is a striking marine fish that has captured the interest of aquarium enthusiasts. This species is admired for its unique coloration, featuring a contrasting grey tail that sets it apart from other angelfish. Native to the Western Pacific, particularly around the Philippines and Indonesia, the Greytail Angelfish is a relatively new addition to the aquarium trade, gaining popularity for its beauty and intriguing behavior.

While not as commonly seen as some other angelfish species, the Greytail Angelfish is valued for its distinctive appearance and the challenge it presents to experienced aquarists. Its rarity in the trade adds to its allure, making it a prized specimen for those looking to diversify their marine collections.

Care

Caring for the Greytail Angelfish requires a well-maintained marine aquarium with plenty of live rock for grazing and hiding. This species thrives in environments that mimic its natural reef habitat, with stable water parameters and ample swimming space. Due to its size and active nature, a tank of at least 500 liters is recommended.

The Greytail Angelfish is moderately difficult to care for, requiring a balanced diet and regular monitoring of water quality. It is best suited for aquarists with some experience in keeping marine fish, particularly angelfish.

Diet and Feeding

In the wild, the Greytail Angelfish feeds on sponges, tunicates, and algae. In captivity, it should be offered a varied diet that includes high-quality marine angelfish preparations, along with frozen foods such as mysis shrimp and brine shrimp. Supplementing their diet with marine algae and spirulina can help maintain their vibrant colors and overall health.

Feeding should occur two to three times daily, with portions adjusted based on the fish's size and activity level. Providing a diverse diet helps prevent nutritional deficiencies and keeps the fish engaged.

Behavior and Compatibility

The Greytail Angelfish is known for its semi-aggressive temperament, particularly towards other angelfish or similarly shaped species. It is best kept as a solitary specimen or in a large tank with plenty of hiding spaces to reduce territorial disputes.

While not considered reef-safe, the Greytail Angelfish may nip at corals and invertebrates, making it more suitable for fish-only or carefully monitored reef tanks. Its bold personality and active nature make it a captivating addition to any marine setup.

Health and Common Issues

With proper care, the Greytail Angelfish can live for several years in captivity. Maintaining optimal water quality and a balanced diet are crucial for preventing common health issues such as ich and marine velvet.

When selecting a Greytail Angelfish, look for individuals with clear eyes, vibrant colors, and smooth fins. Avoid fish that appear lethargic or show signs of disease.

Regular water changes and a varied diet can help prevent health problems. Quarantining new additions and monitoring for signs of stress or illness are essential practices for maintaining a healthy aquarium.

Habitat

The Greytail Angelfish is native to the coral reefs of the Western Pacific, particularly around the Philippines and Indonesia. It inhabits depths ranging from 10 to 40 meters, where it can be found grazing on sponges and algae among the reef structures.

In captivity, replicating this environment with plenty of live rock and stable water conditions is key to the well-being of the Greytail Angelfish. Providing a habitat that mimics its natural surroundings will help reduce stress and encourage natural behaviors.