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Napoleon fish

Marine life profile

Napoleon fish

Recorded at 3 dive sites

Where divers encounter it

Explore Napoleon fish around the world

The humphead wrasse (Crassilabrus undulatus) is the largest species of wrasse mainly found on coral reefs in the Indo-Pacific region. Often calm and observant, it patrols reef slopes and may learn the routines of familiar dive sites.

Dive sites3
Countries2
Animal groupReef Fish
Safety profileGenerally Harmless

Meet the species

What to look for

How to Recognize It

A huge wrasse with thick lips, intricate facial lines and a forehead hump that grows with age.

How It Behaves

Often calm and observant, it patrols reef slopes and may learn the routines of familiar dive sites.

Special Ability

Powerful jaws handle hard-shelled prey, including animals that many reef fish cannot tackle.

Dive responsibly

Share the water well

How to Approach

Move slowly at the same depth, avoid swimming directly at it and let the fish resume its normal behavior.

Safety

Usually safe to observe at a respectful distance. Never feed, corner or touch a fish, especially near nests or cleaning stations.

Worth knowing

The detail you remember

Interesting Facts

Individuals can live for decades, making the largest fish on a reef genuine long-term residents.

Where to Find

Look around coral structure, rocky reef, wrecks and current lines where shelter and food meet.

Known countries

MaldivesIndonesia