Interactive The Ocean

Coral reef

Clown anemonefish

Amphiprion ocellaris

A small, bright orange fish with three white bands edged in black. It lives among the tentacles of a sea anemone.

Size
About 8cm long
Look for it
All year round
Where
Coral reefs of the Indian and western Pacific oceans

My spotter's list

Wiggles after you with quick flicks. Move your pointer and see.

When to look

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Clownfish

Good to know

Six things about the clownfish

Home

A home that stings

It lives in a sea anemone whose stings would kill other fish. A coat of slime protects the clownfish.

Deal

A fair deal

The anemone gives shelter. In return, the fish chases off its enemies and feeds it scraps.

Change

Boys can become girls

All clownfish are born male. When the female of a group dies, the biggest male turns into a female.

Boss

The female is in charge

The largest fish in each anemone is the female, and she is the boss.

Eggs

Dad guards the eggs

The male fans the eggs with his fins and guards them until they hatch.

Range

Never far from home

A clownfish rarely strays more than a few metres from its anemone in its whole life.

The real thing

Photos of the clownfish

Clown anemonefish, photo 1
Photo: Nick Hobgood, CC BY-SA 3.0, Wikimedia Commons
Clown anemonefish, photo 2
Photo: Nick Hobgood, CC BY-SA 3.0, Wikimedia Commons
Clown anemonefish, photo 3
Photo: Diego Delso, CC BY-SA 4.0, Wikimedia Commons

Photos are from Wikimedia Commons, used under the free licences shown. They have been resized, and cropped where they appear in link previews.

Out and about

How to spot one

Look for a big anemone on a shallow reef. The clownfish will be weaving in and out of its tentacles, and may dart out to see you off.

Lend a hand

How to help

Wild clownfish were over-collected for aquariums after a famous film. If you keep fish, buy ones bred in tanks, not taken from reefs.

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