Gouramies and Anabantids include some of the most colourful of freshwater aquarium fishes. Most types are hardy, peaceful and very easy to care for. They also have an active and decorative manner, all this making them popular sellers. These fishes are also known as Labyrinth fish. They regularly rise to the surface to take a gulp of air and can gradually absorb the oxygen from it by means of an extra breathing organ called the labyrinth organ. This allows them to survive in waters with low oxygen levels, such as in very warm swampy areas. Many Gouramies also have long thin pelvic fins that are efficiently used as feelers.