What is a betta fish? Betta fish—also known as Siamese ... 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 ...

It often takes a careful eye to identify the sex of a beta fish ... female bettas. They are violent enough to lower their expected lifespans. This is why you should never have more than one male ...

There are over 70 species of betta fish, with the most common pet varieties being the crowntail, delta, double tail, and halfmoon. Betta fish purchased from a pet store can live up to seven years ...