Twoband anemonefish (Amphiprion bicinctus) male and female

   The body is yellow-orange or brownish with two characteristic white vertical stripes edged in black. The first stripe behind the head is wider than the second, located in the midsection of the body. The caudal fin is always yellow. In some individuals, the coloration darkens significantly; in low light underwater, the yellow may appear gray or almost disappear; young or stressed individuals may be almost completely dark. They coexist symbiotically with sea anemones. In Amphiprion bicinctus, females are usually darker and larger than males. They have a rich orange-brown or even dark brown hue, while males are brighter and more orange. Like all clownfish, they are hermaphrodites: smaller males can become females if the dominant individual dies.