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 ...

These Twin Tail Bettas were initially introduced to the world in 1920s Japan and were to be the Betta world’s koi fish. The ...

Betta fish, also known as Siamese fighting fish, are popular for their vibrant colors and feisty personalities. However, ...

A new study published in Animal Welfare examined how tank size and furnishings impact the behaviour of Siamese fighting fish (Betta splendens), one of the world's most popular aquarium fish.