Clownfish are small-sized, , and depending on species, they are overall yellow, orange, or a reddish or blackish color, and many show white bars or patches. Within species there may be color variations, most commonly according to distribution, but also based on sex, age and host anemone. Clownfish are found in warmer waters of the Indian and Pacific oceans and the Red Sea in sheltered reefs or in shallow lagoons.
In the warmer regions of the Indian and Pacific oceans and the Red Sea, small, brightly colored fish like clownfish are commonly found in sheltered reefs and shallow lagoons. Their coloration can vary depending on species-specific characteristics, including distribution, sex, age, and their association with host anemones.