Betta Fish

Betta fish are small freshwater fishes native to parts of Southeast Asia, with a specialized breathing organ that allows them to take air at the surface. The Siamese fighting fish is familiar in aquariums, where selective breeding has produced varied colors and fin shapes. Natural habitats include shallow, vegetated waters, though different species use different settings. Male territorial displays can involve spread fins and gill covers. Many bettas build bubble nests, while others care for developing young in the mouth.