Join a community of5,000+ocean lovers.

Sightings
5M+
Dive regions
232
App Store rating
5.0 ★

Scan to download the app

Download on the App StoreGet it on Google Play

Mandarinfish

Synchiropus splendidus

Mandarinfish
Photo by Pauline Walsh Jacobson · CC BY

About

The mandarinfish is one of the most vividly coloured fish on the reef, small enough to miss but impossible to forget once spotted. It reaches only about 7 cm long, and stays close to the bottom of sheltered reefs.

Also known as: synchiropus splendidus, mandarin-fish

Length
7 cm
Depth
1–18 m

How to tell it apart

Its body shape looks much like a goby's, but no goby carries this fish's neon blue-and-orange swirling pattern, which makes it easy to tell apart at a glance.

Appearance

This fish has a goby-like body shape but wears a bright blue background covered in swirling orange stripes, with a blue-green face marked by bold blue lines. Its eyes are usually red with black pupils. Large fins on its underside let it 'walk' across the seafloor, and males carry a tall, orange-and-blue dorsal fin along their back.

Diet

It feeds during the day, pecking at tiny prey living on coral and rubble. Its diet is made up of small crustaceans and worms, along with small snails and fish eggs it finds hidden in the substrate.

Is it dangerous?

harmless

Did you know?

The large fins it uses to 'walk' along the bottom are often mistaken for its pectoral fins, but its real pectoral fins are almost invisible, tucked near the centre of its body.

Log it in Into the Blue

Describe what you saw and we name it, then keep every species you find in your Oceandex.

Get the app

Similar species