Clownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae. Thirty species are recognized: one in the genus Premnas, while the remaining are in the genus Amphiprion. In the wild, they all form symbiotic mutualisms with sea anemones. Depending on species, anemonefish are overall yellow, orange, or a reddish or blackish color, and many show white bars or patches. The largest can reach a length of 15–16 cm (5.9–6.3 in), while the smallest barely achieve 7–8 cm (2.8–3.1 in).
Anemonefish are native to warmer waters of the Indian and Pacific Oceans, including the Great Barrier Reef and the Red Sea. While most species have restricted distributions, others are widespread. Anemonefish live at the bottom of shallow seas in sheltered reefs or in shallow lagoons. No anemonefish are found in the Atlantic.
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