The oranda, also known as the "wen" due to the series of outgrowths on its head, is a fancy Goldfish species with a wide range of variations in color. These include black, red, blue, and many more. However, the variations can be confusing and lead one to believe they are different species. To get a better understanding, simply browse through the photos in this article. Additionally, the cap of an oranda usually fully develops after two years.