Blue Gourami (Trichogaster trichopterisi)

Close relatives of the Betta, Gouramis require the same aquarium care. Also known as the Three Spot Gourami, this peaceful fish grows to about 4 inches long and makes a great companion to the Betta in a sufficiently large aquarium. Males can be distinguished from females by the shape of the dorsal fin: His is pointed and elongated toward the tail; hers is much shorter and rounded at the tip. Several color variations of the Blue Gourami are available. This is an extremely hardy species that takes all common aquarium foods.