Radial Filefish - Acreichthys radiatus
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The Radial Filefish (Acreichthys radiatus) is a small, visually intriguing species, notable for its mottled tan and gray body with striking radiating stripes from the eyes and center of the body. Its peaceful nature and unique appearance make it a fascinating addition to reef tanks.
Common Name: Radial Filefish
Scientific Name: Acreichthys radiatus
Family: Monacanthidae
Size: Up to 3 inches (7.5 cm)
Temperament: Peaceful
Difficulty: Moderate
Reef Safe: With caution
Native Region: Found throughout the Indo-Pacific, including coral reef flats and lagoons, often among rubble and branching corals.
Tank Size: Minimum of 30 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate: Provide live rock with plenty of hiding places and grazing surfaces.
• Diet: Omnivorous—feeds on small invertebrates, algae, and prepared meaty foods.
• Behavior: Generally peaceful; may nibble on soft corals or polyps, so monitor in reef tanks.
• Tankmates: Compatible with other peaceful fish; avoid aggressive or fin-nipping species.
• Environment: Requires well-established aquariums with stable water parameters for optimal health.