African Flameback Angelfish

The Centropyge acanthops, commonly known as the African Flameback Angelfish, Orangeback Angelfish, or simply Flameback Angel, is a dwarf angelfish species from the Western Indian Ocean, especially around East Africa, Madagascar, and the Seychelles. This fish is loved for its bold coloration, small size, and active personality, making it a favorite in nano and mid-sized reef aquariums.
It features a deep royal blue body with a bright orange to yellow patch starting from the top of the head and extending along the back and dorsal fin—hence the name "Flameback." Its striking contrast of colors gives it a flame-like appearance and makes it stand out in any tank. Adults typically reach around 3 inches (7.5 cm) in length.
Care Requirements:
Tank Size:
Minimum 30 gallons, but ideally 40+ gallons if housing with other fish. Despite their small size, Flamebacks are territorial, especially toward other dwarf angels.
Temperament:
Semi-aggressive. They are generally peaceful with other fish but may become territorial—especially toward similar-shaped species (like other dwarf angels). Best kept one per tank unless in a very large system.
Diet:
Omnivore. Needs a varied diet including:
Marine algae and spirulina
Mysis shrimp, brine shrimp
Angelfish-specific frozen foods (especially those with sponge content)
High-quality pellets/flakes with added marine veggies
Feed 2–3 times daily in small portions.
Reef Compatibility:
Reef-safe with caution – While most individuals behave well, some may nip at coral polyps, especially LPS, zoanthids, and clam mantles. Their behavior varies, so monitor them closely in a reef setup.
Water Parameters:
Temperature: 74–80°F (23–27°C)
Salinity: 1.023–1.025
pH: 8.1–8.4
Ammonia/Nitrite: 0 ppm
Nitrate: <10 ppm
Tank Setup:
Provide plenty of live rock for grazing and hiding. Flamebacks are active swimmers and love to dart in and out of rock crevices. They do best in tanks with stable parameters, moderate flow, and well-established biofiltration.
Behavior & Tankmates:
Best with:
Clownfish
Gobies
Blennies
Wrasses
Tangs (in larger tanks)
Avoid other dwarf angelfish unless the tank is very large (100+ gallons) and added at the same time.