I've always been fascinated by betta fish! They seem like such cool little fish!
They are pretty cool.  I like the king betta.  They are about 2 inches are either beige or white.
Oh really? Why are they always in bowls by themselves?
and prefers a temperature of 78–82 °F. 
History.
Hardly anything is known about the King betta. Some people say that "Betta raja" and "Betta splendens" cross bred in nature to create the King betta we know today. Others suppose that the King betta was bred from wild stock of "B. raja". 
Diet.
King bettas eat fish flakes, pellets, bloodworms and freeze-dried brine shrimp.
Behavior.
Male and female king bettas flare or puff out their
King betta
The King betta is a popular aquarium fish of unknown provenance.
Description.
The King betta generally grows to about 5–6 cm (2–2 1/2 in). Its pigments are generally vibrant beige to a white. As with most bettas, King betta females are smaller and less colorful than the males. The life span of the King betta is short, generally 2–3 years, rarely reaching four. The King betta is (as are all other bettas) members of the gourami family (Osphronemidae)