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: Malay for ...

For first-time fishkeepers, colorful betta and guppies are affordable and attractive aquarium fish options. Bettas (Betta splendens), native to Southeast Asian rice paddies, and guppies (Poecilia ...

Scientists found that the fish were gradually domesticated like dog breeds into the beautiful shapes and colors that turn up today in pet stores. A betta fish, also known as the Siamese fighting fish, ...