Oryzias latipes Yang Gui Fei Medaka is a type of fish native to Japan and Taiwan. It is a small, colorful fish that can reach up to 3 inches in length. Its name translates to "beautiful woman from Yang" and it is named for its black and white coloring of its scales, which are said to resemble a woman's cheeks. The fish has a striking pattern of red, blue and yellow along its back, and white or yellow on its belly. It is an active fish that can be found foraging for food in densely planted areas, and it is known for its intelligence and curiosity. Its diet consists of small insects, crustaceans, and other aquatic invertebrates. It can also be kept in tanks with other small fish, but it must be fed carefully to avoid overpopulation.