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Radial Filefish

Acreichthys radiatus

A miniature filefish with radial white stripes. Excellent camouflage among soft corals, useful for controlling Aiptasia.

Family
Monacanthidae
Origin
Pacifico occidentale
Origin
Tropical oceans and reefs
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

23 °C - 27 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

Middle

Adult size

7 cm

Species description

Geographical Origin and Habitat: Western Pacific, ranging from the Philippines to Northern Australia. Inhabits shallow coastal reefs rich in soft corals and sponges.

Taxonomy and Morphology: Belongs to the family Monacanthidae. Features a small, compressed body with tiny skin filaments for camouflage. Grows to 7 cm.

Social Behavior: Highly peaceful and slow-moving, hovering near soft corals. Excellent candidate for smaller, quiet tanks.

Coloration and Sexual Dimorphism: Mottled brown and green with radial white lines. Adaptable camouflage. No visible sexual dimorphism.

Care, breeding and tankmates

Aquarium Setup: Minimum aquarium size of 100 liters (25 gallons) with live rock and soft corals (like *Nephthea*).

Diet and Feeding: Omnivorous. Feeds on micro-invertebrates, algae, and coral polyps. Accepts frozen mysis, brine shrimp, and marine flakes.

Water Quality: Demands stable marine conditions: temperature 23-27°C, pH 8.1-8.4, and zero ammonia or nitrite.

Compatibility and Cohabitation: Keep with small, non-aggressive species.

Reef safe with caution:; useful against Aiptasia but may nip corals.

Aquarium Breeding: Rare in domestic reef systems; pairs form easily.

Risks and Diseases: Vulnerable to food competition. Pipette target feeding is highly recommended.

Fish profile

Temperament
Nuotatore attivo, territoriale con simili
Diet
Mangime marino variato, surgelato ed erbe marine
Tank level
Middle
Minimum group
1
Adult size
7 cm
Minimum tank volume
100 L
GH
n/a
KH
n/a
TDS
n/a
Conductivity
n/a
Feeding frequency
1-2 volte al giorno in piccole porzioni
Bioload
Medio
Flow
Flusso moderato
Reproduction
Riproduzione in acquario praticamente impossibile in cattività
Compatibility & tankmates
Non sicuro con coralli, tenere in vasche fish-only

Ecological Estimates & Biological Models

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

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Last updated: 06/13/2026