The flame angelfish is a brilliant red-orange dwarf angel banded with black and trimmed in electric blue, one of the most sought-after pygmy angels. Hardy and personable for a Centropyge, it is conditionally reef-safe and needs a well-established tank with copious live rock.
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Colorful reef-associated marine fish kept for their beauty and grazing behaviors. This grouping spans dwarf (Centropyge) angelfish and similar reef species that need mature live-rock systems, stable water chemistry, and careful attention to reef compatibility.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
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Minimum
Dwarf reef tank
70 gal / 265 L reef
Centropyge loricula reaches 4 in. 70-gal reef minimum with mature live rock and abundant algae for grazing. Generally reef-safe but may nip LPS/clams. Single specimen.
Photo coming soon
Recommended
Mature reef display
100 gal / 379 L mature reef
100-gal mature reef with deep aquascape, established algae, peaceful community, and stable parameters. Striking orange-red colour against live rock.
Ideal
Established display reef
125 gal+ / 473 L+ mature reef
Mature 125-gal+ display reef with abundant algae, varied feeding, and stable peaceful community. Long-lived and constantly visible.
KoS / CC BY-SA 3.0 (Wikimedia Commons)
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Photo coming soon
Egg
Fish eggs are small, translucent spheres, often laid in clutches on plants, substrate, or in a nest — or carried/brooded by a parent in livebearing and mouth-brooding species. A dark eye spot and the curled embryo become visible inside as development progresses.
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Fry
Newly hatched fry are tiny and semi-transparent, frequently still carrying a yolk sac that fuels them before they feed freely. They lack full fin structure and adult coloration, staying near cover until they can swim and forage on their own.
Photo coming soon
Juvenile
Juveniles look like miniature adults but with developing fins and muted or different markings; many species shift pattern and color as they mature. Growth is rapid at this stage given clean water and steady feeding.
Adult
Adults show the species' full size, finnage, and mature coloration, and are sexually mature. Many fish develop sex-specific differences in size, color, or fin shape, which can intensify during breeding.
Habitat & enclosure
Keep one flame angel in a mature reef or fish-only system of at least 110 L (30 gal), preferably larger, with dense live rock for grazing and quick shelter. Maintain tropical reef conditions: 23-27 C (74-80 F), pH 8.1-8.4, salinity 1.023-1.026 SG, and moderate flow. Provide plenty of caves and crevices, as flame angels are shy when first introduced.
Substrate
Build the aquascape from mature, porous live rock with abundant caves and ledges for grazing and refuge. A fine aragonite sand bed suits its natural reef-slope habitat and houses helpful microfauna.
Equipment & setup
Use a protein skimmer and robust biological filtration on a stable reef, with a reliable heater (chiller if required) and moderate, multidirectional flow. Reef lighting that promotes a healthy live-rock algae film benefits the fish, and a secure lid reduces jumping risk early on.
Diet
Omnivore that grazes algae and biofilm and accepts prepared foods readily. Offer spirulina and marine-algae preparations, dried nori, and meaty foods such as mysis and enriched brine shrimp, ideally with angelfish formulas containing sponge. Feed small portions several times a day alongside natural live-rock grazing.
Behavior & temperament
Bold and curious for a dwarf angel but can be territorial toward other Centropyge and similarly shaped fish; keep one per tank unless the system is very large. Only conditionally reef-safe: most leave corals alone, but individuals may nip LPS, zoanthids, and clam mantles. A well-fed flame in a mature reef with abundant algae is least likely to bother corals.
Health
Prone to marine ich and velvet under stress or after shipping, so quarantine and observe new fish before adding them to the display. Hardy once settled and feeding. Use copper and other medications cautiously, as angelfish can be sensitive; maintain excellent water quality to support its immune system.
Tips, DIY & hacks
Drip-acclimate and quarantine for several weeks, since flame angels can carry parasites from collection. Add to a fully cycled tank rich in live-rock algae and introduce it before more aggressive fish so it can establish a territory. Dimming lights at introduction can help a shy specimen settle and start feeding.
