Flameback Angelfish Care Guide
Centropyge acanthops · Saltwater Angelfish

What Flameback Angelfish look like
The Flameback Angelfish (Centropyge acanthops) exhibits a striking coloration characterized by a vibrant orange to reddish body, complemented by a distinctive blue margin along the dorsal and anal fins. This species can reach a maximum adult size of approximately 4 inches (10 cm). Sexual dimorphism is subtle, with males typically displaying slightly larger dorsal fins and more intense coloration than females. Defensive adaptations include the ability to hide among reef structures and a robust, laterally compressed body that allows for agile maneuvering in tight spaces. Unique morphological features include a pronounced lateral line system that aids in detecting water movement and potential predators, as well as specialized dentition adapted for grazing on algae and small invertebrates.
Behavior & temperament
The Flameback Angelfish is known for its semi-aggressive temperament, often establishing a clear social hierarchy within its territory. It typically occupies the mid to lower levels of the reef, where it can be seen grazing on algae and small invertebrates. Breeding behavior involves the establishment of a breeding pair, which may engage in courtship displays that include synchronized swimming and fin flaring. This species is generally territorial, particularly during breeding, and may exhibit aggressive behavior towards intruders or other angelfish species.
Diet & feeding
In the wild, the Flameback Angelfish primarily feeds on algae, detritus, and small invertebrates, making it an omnivorous grazer. In captivity, it requires a varied diet that includes high-quality marine flakes, pellets, and frozen foods enriched with spirulina and other algae.
Behind the name
The genus name 'Centropyge' is derived from the Greek words 'kentron' meaning 'spine' and 'pyge' meaning 'rump', referring to the spiny structure of the fish's body. The species name 'acanthops' comes from the Greek 'akantha' meaning 'thorn' and 'ops' meaning 'face', likely referencing the fish's prominent features.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Flameback Angelfish?
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