What is a betta fish? Betta fish—also known as Siamese ... If a female approves of the nest, she turns darker to show her interest. During mating, the male chases the female—sometimes nipping ...

We may receive a commission on purchases made from links. There are over 70 species of betta fish, with the most common pet varieties being the crowntail, delta, double tail, and halfmoon.

Did you know that the betta fish was domesticated over 1,000 years ago? Known as Siamese fighting fish (Betta splendens) in ...