From where clownfish have white strips on a body?

A visual variety of living beings on a planet Earth is caused not so much by draft to fine and desire to differ, how many habitat, habits and even gastronomic preferences. Someone prefers to remain unnoticed, merging with environment at the expense of a camouflage color and an unusual shape of a body. Someone, on the contrary, very clearly speaks to any who to dare to come nearer, about the yadovitost. And someone simply likes to stand out before the partner and to defame the competitor. Any visual features have any function. For example, color of clownfish of a look...