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

Yellowtail clownfish

Amphiprion clarkii

Yellowtail clownfish
Photo by Debra Baker · CC BY

About

Clark's anemonefish, also known as the yellowtail clownfish, is the most widely spread of all the anemonefish. It is found from the Indian Ocean across to the western Pacific. It grows to about 15 cm, and like other anemonefish, it lives safely among the stinging arms of a host sea anemone.

Also known as: clark's anemonefish, clark's anemonefish, yellowtail clownfish, sea bee, black clown, chocolate clownfish, yellowtail clownfish, damsel fish, black clown, two-banded anemonefish, yellowtail clownfish, sea bee, sea anemone, clown fish, clarcki's clown, chocolate clownfish, clark's anemonefish, amphiprion milii

Length
15 cm
Depth
up to 60 m

How to tell it apart

Several other anemonefish look similar. Check the tail: this species has a forked tail with a sharply defined white base. Other similar species either lack the white base bar, have a blurred edge to it, or have a plain dark tail.

Appearance

The body is yellow, orange, or a reddish or blackish colour, often marked with white bars or patches. Colour can vary with location, sex, age and the host anemone. The tail fin is forked, giving the fish its common name.

Habitat

It lives in reef lagoons and on outer reef slopes across the Indian Ocean and western Pacific, from about 1 to 60 m deep. It is the least fussy anemonefish about which sea anemone it partners with, sharing space with every anemone species known to host anemonefish.

Did you know?

This is the least fussy anemonefish known. It lives happily with all ten kinds of sea anemone that can host anemonefish.

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