Betta fish, also known as Siamese fighting fish, are freshwater fish native to Southeast Asia, particularly Thailand, Cambodia, Laos, and Vietnam. They are known for their vibrant colors and long, beautiful fins. Betta fish are famous for their aggressive behavior, especially the males, who tend to fight and defend their territory fiercely when encountering other males. Betta fish come in a variety of species and colors, such as red, blue, green, and other combinations, making them popular as ornamental fish. They have the unique ability to breathe both through gills and skin, allowing them to survive in low-oxygen environments, which is a special characteristic that helps them live in waters where oxygen levels are insufficient. Taking care of a Betta fish is not difficult, but it requires clean water, proper feeding, and attention to water temperature. Betta fish have an average lifespan of about 2-3 years, though some can live up to 5 years with proper care. Overall, Betta fish are beautiful and popular as pets due to their striking appearance and small space requirements, making them ideal for home aquariums or ornamental tanks.