Trumpetfish

Aulostomus Chinensis
Trumpetfish - Marinewise © 2025 MarineWise

Quick Facts

Scientific name Aulostomus Chinensis
Other names Chinese Trumpetfish, Pacific Trumpetfish, Painted Flutemouth, Spinyback Trumpetfish
Size Up to 90 cm (35.43 in)
Weight Up to 4 kg (8.8 lb)

Distribution

Habitat & AU Distribution Shallow coastal waters amongst coral & rocky seaward reefs
Depth Range Up to 120 m (400 ft)
Trumpetfish Distribution

Interesting Info

  • The Trumpetfish has a long, slender body and a tubular snout—like a swimming trombone!
  • In Australia, it lives in tropical and subtropical reefs—from north-western Western Australia, across the tropics, down to central New South Wales, including Lord Howe, Norfolk, Christmas and Cocos-Keeling Islands.
  • Globally, it’s widespread across the Indo-Pacific—from East Africa to Hawaii, including the Indian and Pacific Ocean tropical zones.
  • They grow to around 80 cm (32 in), though individuals up to 90 cm (35 in) are reported.
  • Trumpetfish are colour-changers—they can shift from brown, green or grey to bright yellow to blend into coral or seaweed.
  • They hunt by hiding vertically among coral branches or swaying with big fish like grouper, using stealth to sneak up on small fishes and shrimp.
  • This fish uses its long snout like a vacuum—darting down to suck in prey in a split second.
  • Trumpetfish usually hang out solo, but sometimes shadow other larger reef fish to go unnoticed while hunting.
  • They live near the sea floor or mid-depths—from just below the surface down to around 120 m (400 ft).
  • They’ve been nicknamed “painted flutemouths” because of their long snout and jazzy movement.
  • Their fins often have dark bars, and their tail has one or two black spots that help break up their shape.
  • They’re closely related to pipefish and seahorses, sharing the “flutes” in their family history.
  • These masters of disguise help keep reef food webs in balance by controlling small fish and shrimp.
  • Even people walking the beach might spot them—because their shape and colour make them look like floating twigs or seaweed.
  • Their name comes from Greek “aulos” (flute) and “stoma” (mouth)—perfect for a fish that sings with stealth!
Species Interaction

Snorkelling & Diving

Trumpetfish are one of the most entertaining reef fish to observe while snorkelling or diving. Look carefully along coral heads, sea whips, or even trailing close to bigger fish — their camouflage makes them nearly invisible until they strike.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Syngnathiformes

Family: Aulostomidae

Genus: Aulostomus

Species: Aulostomus Chinensis

Conservation Status

The Trumpetfish is listed as Least Concern by the IUCN. It is widespread throughout the Indo-Pacific, including northern Australia, and faces no major fishing threats. Habitat loss from coral reef decline, however, could impact local populations.

Fish Taste Quality

Trumpetfish is edible but are not targeted as food in Australia. In some parts of Asia, they are eaten in small quantities, but they are generally considered poor table fish.

Taste Rating: 1/5

How to catch
Trumpetfish

Catch Difficulty: Easy

Tackle: Floater Rig, Running Sinker Rig

Bait: Fresh cut flesh baits, Feather jig, Prawns, Live minnow

Technique: Slowly sink bait towards bottom

Popularity: Not targeted

Recreational Viewing
- Snorkeling & Scuba

Finding: Intermediate

Temperament: Peaceful

Location: Inner Reef, Lagoon

Danger: None