Cherub Angelfish

Centropyge argi

Animalia›Chordata›Actinopterygii›Perciformes›Pomacanthidae

📍 Western Atlantic, Caribbean & Tropical Atlantic

Smallest dwarf angelfish in the Atlantic — deep royal blue body with a vivid orange-yellow face. Feisty for its size but one of the more reef-safe dwarf angels. A stunning nano-reef option when kept alone.

Size3"

Min Tank30g

semi-aggressive

Zonemid

Care Guide

Diet

Cherub Angelfish are omnivores that require a varied diet of high-quality marine flakes, small pellets, and frozen foods such as mysis shrimp, brine shrimp, and copepods. They should be fed once daily in small portions, with occasional algae-based foods or nori sheets to supplement their natural grazing behavior on microalgae and small crustaceans.

Behavior

Despite their diminutive size, Cherub Angelfish are surprisingly bold and territorial, often darting quickly through mid-water zones while investigating their environment. They are best kept singly or in pairs in established tanks, as they can become aggressive toward conspecifics and similarly-sized fish. They are active swimmers that benefit from plenty of rockwork and hiding spaces to establish territories.

Breeding

Breeding Cherub Angelfish in captivity is extremely difficult and rarely successful in home aquariums. They require very stable water conditions, large tank volumes, and specific environmental triggers that are hard to replicate. Most specimens in the hobby are wild-caught, and captive-bred individuals remain exceptionally rare.

Tank Mates

Ocellaris Clownfish

Similar size and reef-safe; may compete for space but generally coexist peacefully

good

Neon Goby

Small, peaceful, and occupies different tank zones; beneficial cleaner fish

good

Pistol Shrimp

Can coexist but may be nipped at; requires careful observation

caution

Fire Shrimp

Reef-safe and generally ignored by angelfish; adds visual interest

good

Cleaner Shrimp

Provides cleaning services and poses no threat; mutually beneficial relationship

excellent

Common Diseases

Marine Ich (White Spot Disease)

Symptoms

White spots on body and fins, rapid breathing, scratching against rocks, lethargy

Treatment

Increase water temperature to 28-29°C, maintain excellent water quality, use copper-based treatments or hyposalinity therapy; quarantine infected fish

Fin Rot

Symptoms

Frayed or deteriorating fin edges, discoloration at fin margins, progressive fin loss

Treatment

Improve water quality and reduce stress; perform frequent water changes; use antibiotic treatments if bacterial infection is confirmed

Parasitic Infections

Symptoms

Excessive scratching, visible parasites, clamped fins, loss of appetite, rapid gill movement

Treatment

Quarantine immediately; treat with appropriate antiparasitic medications; maintain pristine water conditions during recovery

Head and Lateral Line Erosion (HLLE)

Symptoms

Pitting or erosion of head and lateral line, loss of sensory pores, darkened coloration

Treatment

Improve diet with vitamin-enriched foods and quality marine flakes; enhance water quality; supplement with vitamin C; condition typically improves with proper nutrition