Clownfish (ocellaris)

Ocean · Fish · Amphiprion ocellaris

The ocellaris clownfish is a small reef fish that lives among the tentacles of a host sea anemone. It feeds on tiny animals and algae and eats parasites from its anemone.

Key numbers

Ocellaris clownfish (Amphiprion ocellaris), orange with white bands, swimming among the tentacles of its host sea anemone
Photo: Petr Knotek, CC BY 4.0, via iNaturalist, resized

Scientific name: Amphiprion ocellaris

Length8–11 cm (3–4 in)(animaldiversity.org)
Lifespan (wild)6–10 years(animaldiversity.org)
DietMostly eats tiny drifting animals such as copepods, plus algae. It also picks parasites off the sea anemone it lives in.(animaldiversity.org)
HabitatOcean: Tropical Indo-Pacific: northwest Australia, Southeast Asia and north to the Ryukyu Islands of Japan; coral reefs and sheltered lagoons to about 15 m deep.(animaldiversity.org)

Sources give different figures for some of these numbers; we show the range they support.

Our full clownfish (ocellaris) profile is on the way. Meanwhile, see it next to a person, to scale.