Betta fish—also known as Siamese fighting fish ... and are a dull gray, green, olive, or brown. Before mating, the male spends hours blowing bubbles at the water’s surface to build what ...

Scientists have found Siamese fighting fish are typically kept in containers just one-quarter the size they need to thrive, ...

"Current guidelines for appropriate tank size for Betta fish are vague and ... well-being," says Professor Brown. "It was clear that Siamese fighting fish are better off in larger, furnished ...