What is a betta fish? Betta fish—also known as Siamese fighting fish—are among the oldest species of domesticated fish. Their scientific name, Betta splendens, combines two languages ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world," PetMD reports. Native to southeast Asia, this species is known for its range of vibrant hues.

Betta fish, also known as Siamese fighting fish, are popular for their ... Cherry Barbs are known for their striking red ...

Betta fish, also known as Siamese fighting fish, are a popular choice ... With their shimmering silver bodies and red fins, ...