Encyclopaedia
Pearlscale angelfish
Centropyge vrolikii
Also known as the Half-black Angelfish, this hardy dwarf species shows a pearly grey body transitioning into a dark black tail.
- Family
- Pomacanthidae
- Origin
- Indo-Pacifico
- Origin
- Tropical oceans and reefsExtra-Amazon South AmericaAfrica and MadagascarEast Asia
- Tank use
- Used in 0 tanks
Share
24 °C - 27 °C
8.1 - 8.4
Marine
All levels
12 cm
Species description
Geographic Origin and Biotope: Widely distributed in the Indo-Pacific, from the Red Sea and East Africa to the Marshall Islands, Vanuatu, and Japan. Inhabits coral-rich reefs.
Taxonomy and Morphology: Member of the Pomacanthidae family. Possesses an oval body shape and preopercular cheek spine. Grows up to 12 cm (4.7 inches).
Social Behavior: Active and territorial. Naturally forms small harems. Defends its immediate shelter and grazing grounds in home aquaria.
Coloration and Sexual Dimorphism: Body color fades from pearly grey at the front to jet black on the posterior portion. Fins are edged in brilliant blue neon. Males are larger.
Care, breeding and tankmates
Aquarium Setup: Minimum aquarium size of 150 liters (40 gallons). Furnish with stable live rock configurations creating caves and pathways for grazing.
Diet and Feeding: Omnivorous. Grazes on algae and organic detritus. Feed daily nori, spirulina pellets, and frozen mysis or brine shrimp.
Water Quality: Keep standard marine parameters stable: temperature 24-27°C (75-81°F), pH 8.1-8.4, specific gravity 1.020-1.025, and KH 8-12.
Compatibility and Tankmates: Caution is advised as it is known to nip at LPS, SPS, and soft corals. Best kept as the sole dwarf angelfish.
Aquarium Reproduction: Unrecorded in domestic systems due to broadcast spawning habits and difficult pelagic larval stages.
Risks and Diseases: Relatively hardy for a dwarf angelfish, but can contract marine ich under stressful tank conditions. Ensure high-quality nutrition.
Fish profile
- Temperament
- Semi-aggressivo (territoriale con chirurghi o angeli simili)
- Diet
- Omnivoro (alghe, biofilm, crostacei surgelati, pellet)
- Tank level
- All levels
- Minimum group
- 1
- Adult size
- 12 cm
- Minimum tank volume
- 150 L
- GH
- n/a
- KH
- 8 dKH - 12 dKH
- TDS
- n/a
- Conductivity
- n/a
- Sex ratio
- Singolo esemplare
- Feeding frequency
- 2 volte al giorno
- Bioload
- Medium
- Flow
- Movimento moderato
- Reproduction
- Ermafrodita proteroginico. Riproduzione in acquario non registrata con successo per le complesse larve.
- Compatibility & tankmates
- Spesso pizzica i polipi dei coralli molli e duri, specialmente se non alimentato a sufficienza.
Ecological Estimates & Biological Models
- Trophic level
- 2.8 ± 0.31 se
- Resilience
- High (less than 15 months)
- Phylogenetic uniqueness (PD50)
- 0.5
- Bayesian Length-Weight
- a = 0.0302, b = 2.89
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Other recommended species with similar care requirements and water parameters.





