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 ...

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.

Betta fish require a specific diet of protein-rich foods, such as pellets or freeze-dried brine shrimp. While this may not seem like a big issue, a child may not have the proper knowledge to ...