Female bettas display vertical stripes on their body when they are ready to mate, while males do not. Females are a bit shorter and more wide-bodied than male bettas. Males tend to have more ...

Betta fish—also known as Siamese fighting fish ... He then puts on a display to attract a female, becoming brighter and spreading out his fins. If a female approves of the nest, she turns ...

and they should never share their tank with another betta fish. The males of the species will fight one another, and not all female betta fish get along with other betta fish. "All betta fish ...