Monacanthidae

Bristle-tail file-fish

Acreichthys tomentosus

Shifting color and skin texture to vanish

• Tropical
• Regional distribution
• Marine fish
• Pacific Ocean
• East Asia
• Oceania
• South Asia
• Southeast Asia
• Deep-bodied
• Small
• Tropical fish

Acreichthys tomentosus, commonly known as the bristle-tail filefish or Aiptasia-eating filefish, is a species of demersal marine fish which belongs to the family Monacanthidae and is widespread throughout the tropical waters of the Indo-west Pacific. It is a small fish that can reach a maximum size of 12 cm (4.7 in) length and has the ability to rapidly change color and skin texture and patterns as to avoid detection and consequently predation. It is oviparous.