15 Interesting Facts About Adorable Clownfish (With Pictures)

4. Clownfish can change genders All clownfish are born as males and are placed into different groups. The dominant male clownfish in a group will develop into a female. This fish is usually the largest of the group as well. Second in command to the female is the most aggressive male fish. This male fish will prevent others in the group from getting bigger and will also breed with the female clownfish.