Brown Butterflyfish (Chaetodon collaris)
The Brown Butterflyfish (Chaetodon collaris), also commonly known as the Redtail Butterflyfish or Pakistani Butterflyfish, is a distinct marine ray-finned fish belonging to the family Chaetodontidae. Native to the tropical waters of the Indo-West Pacific, its range spans from the Persian Gulf, Gulf of Oman, and the Maldives east to Indonesia, the Philippines, and southern Japan. The species reaches a maximum length of about 18 cm (7 inches) and features a deep, laterally compressed body. Its coloration is characterized by reddish-brown to dark chocolate body scales with lighter center spots, a bright white band behind the eyes, and a striking bright red base on its caudal fin framed by a black bar and a white trailing edge.
Ecologically, Chaetodon collaris is a reef-associated species typically found in shallow coastal waters, upper reef slopes, and rocky drop-offs at depths between 3 and 20 meters. In their natural wild habitat, these fish feed primarily on coral polyps and small benthic invertebrates using their pointed snouts and fine, brush-like teeth. While juvenile fish are often solitary or inhabit shallow estuaries and tidal zones, adults exhibit strong social behaviors; they regularly form monogamous breeding pairs or aggregate into large foraging schools that glide together across coral reefs.
Ecologically, Chaetodon collaris is a reef-associated species typically found in shallow coastal waters, upper reef slopes, and rocky drop-offs at depths between 3 and 20 meters. In their natural wild habitat, these fish feed primarily on coral polyps and small benthic invertebrates using their pointed snouts and fine, brush-like teeth. While juvenile fish are often solitary or inhabit shallow estuaries and tidal zones, adults exhibit strong social behaviors; they regularly form monogamous breeding pairs or aggregate into large foraging schools that glide together across coral reefs.