Potter's Angel Care Guide
Centropyge potteri is a Hawaiian dwarf angelfish with an orange body and fine blue lines that feeds on algae and detritus.
Compiled by Aquairi from published sources · Published · Updated
Overview
Centropyge potteri, Potter's angelfish, is a dwarf angel of the family Pomacanthidae described by Jordan and Metz in 1912. It has a bright orange body marked by thin blue to black vertical lines, with blue-margined fins. FishBase reports a maximum total length of about 12.5 cm.
Taxonomy
- Family: Pomacanthidae
- Genus: Centropyge
- Scientific name: Centropyge potteri
Habitat
Found in the central Pacific around the Hawaiian Islands and Johnston Atoll. It is a benthopelagic species occurring over rock, coral and rubble on seaward reefs at depths from about 5 to over 120 m.
Tank requirements
- Minimum tank volume: 300 L
- Temperature: 24-26 °C
- pH: 8.1-8.4
- Specific gravity: 1.024-1.026
- dKH: 8-12
- Adult size: 10-12 cm
- Lifespan: 8-15 years
Diet
Feeds on algae and detritus in the wild. In aquaria it needs a mature tank rich in microalgae for grazing, supplemented with marine algae, mysis and prepared angelfish foods offered several times daily.
Reef compatibility
Reef compatibility is variable; like many dwarf angels it may nip at coral polyps and clam mantles. It is best kept in a mature tank with abundant grazing. Maintain specific gravity 1.024-1.026 and dKH 8-12.
Compatibility
Semi-aggressive, especially toward other dwarf angels; avoid keeping multiple Centropyge in one tank and avoid aggressive damsels. Suitable tankmates include tangs, clownfish, wrasses and gobies.
Breeding
It lives in harems of one male and up to eight females and is a protogynous hermaphrodite; the dominant female changes sex if no male is present. Spawning occurs from December to May near nightfall.
Conservation status
IUCN Red List: Least Concern (assessed 2009). It is collected for the aquarium trade.
Potter's Angel (Centropyge potteri) Breeding Guide
Overview
Potter's angel, Centropyge potteri, is a dwarf angelfish endemic to the Hawaiian Islands and Johnston Atoll, found on rock, coral and rubble of seaward reefs from about 10 to 120 m. It reaches around 10 cm and feeds on algae and detritus. Like other dwarf angels it is a pelagic spawner with planktonic larvae, so it is rarely reproduced in home aquaria.
Sexing
Centropyge are protogynous hermaphrodites: all individuals begin life as females and the dominant fish in a group changes to male. There is no reliable fixed external sex difference, and harem hierarchy rather than colour determines which fish is male.
Conditioning
In nature Potter's angel lives in harems of a single male with up to about eight females, so any breeding programme starts from establishing such a social group in a large, mature system. This haremic structure is difficult to maintain stably in a home aquarium because dwarf angels are intolerant of conspecifics in confined space.
Spawning Behavior & Trigger
Spawning occurs near dusk, reported between December and May. The male courts with displays, swimming alongside the female in a vertical position and producing audible grunts and clicks before the pair release eggs and sperm into the water column above a chosen outcrop. This upward pelagic spawning ascent cannot be reproduced in a typical aquarium.
Egg & Fry Care
Eggs and larvae are pelagic. The newly hatched larvae are exceptionally small and require tiny live prey such as cultured copepod nauplii through a long planktonic phase before metamorphosis. Providing suitable first foods and stable larval-rearing conditions is the central obstacle and demands hatchery-grade technique.
Common Challenges
The genus Centropyge has been captive-bred only at specialist facilities, beginning with breakthroughs on a handful of species. Replicating dusk pelagic spawning, then feeding and raising the minute larvae, keeps Potter's angel a research- and commercial-scale challenge rather than a home-aquarium project.