Common name: Blackear Angelfish

Scientific name: Centropyge hotumatua Randall & Caldwell, 1973

General Information

The Blackear Angelfish, scientifically known as Centropyge hotumatua, is a captivating species within the marine aquarium trade. Known for its striking appearance, this angelfish is characterized by a predominantly dark blue and orange body adorned with a distinctive black spot behind the eyes, giving it the "blackear" moniker. It is a relatively rare find in home aquariums due to its limited distribution and collection challenges.

In the wild, the Blackear Angelfish is found in the central Pacific Ocean, particularly around the Society Islands and other parts of French Polynesia. This species is not only admired for its beauty but also for its relatively peaceful nature compared to other angelfish.

Details

Estimated price
Expensive
Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to difficult
Diet
Omnivore Includes algae, small crustaceans, and detritus
Social
Solo Best kept singly or as a pair to avoid aggression
Reefsafe
Yes
Aggression
Semi aggresive Territorial towards other dwarf angelfish
Captive bred
No
IUCN Red List
EX
EW
CR
EN
VU
NT
LC

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Angelfishes
    Pomacanthidae
  6. Genus
    Dwarf Angelfishes
    Centropyge Kaup, 1860
  7. Species
    Blackear Angelfish
    Centropyge hotumatua Randall & Caldwell, 1973
  8. Source: GBIF | Global Biodiversity Information Facility

Care

Caring for the Blackear Angelfish requires attention to detail, particularly regarding its environment. These fish thrive in well-established aquariums that mimic their natural coral reef habitats. A tank with ample live rock for grazing and hiding is essential. They are best suited for aquariums of at least 200 liters, providing them with enough space to swim and explore.

Diet and Feeding

The Blackear Angelfish is an omnivore, feeding on a diet that includes algae, small crustaceans, and detritus in the wild. In captivity, they should be offered a varied diet that includes high-quality angelfish preparations, spirulina, mysis shrimp, and marine algae. Feeding small amounts several times a day can help keep them healthy and vibrant.

Behavior and Compatibility

Blackear Angelfish are generally peaceful but can exhibit territorial behavior, especially towards other dwarf angelfish. They are best kept singly or as a pair in larger tanks to avoid aggression. They can coexist with a variety of other peaceful fish species, making them a good addition to a community tank.

Reproduction

Breeding the Blackear Angelfish in captivity is challenging and not commonly achieved. Like many marine species, they exhibit complex mating behaviors and require specific conditions to spawn. Successful breeding typically involves a dedicated effort to simulate their natural environment and provide optimal water conditions.

Health and Common Issues

While generally hardy, the Blackear Angelfish can be susceptible to common marine diseases such as ich and marine velvet. Maintaining excellent water quality, a balanced diet, and regular monitoring for signs of stress or illness are crucial for their well-being.

Habitat

In their natural habitat, Blackear Angelfish are found in coral-rich areas of lagoons and outer reef slopes at depths ranging from 5 to 30 meters. They thrive in stable, warm water conditions with plenty of hiding spots and grazing areas provided by live rock.