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 fish, also known as Siamese fighting fish, are popular for their ... here are ten of the best tank mates that are known to coexist harmoniously with Betta fish. Corydoras catfish, often ...