The Betta fish are the wild relatives of the “Fighting Fish”, originally from Thailand and Cambodia. They are also known as simply “Betta” and “Fighter”.
The average length of the Betta fish is roughly 6 centimeters in length although some do grow to up to 8 centimeters. Most are a plain green or brown however due to selective breeding, some species are amazingly colored and are much longer.
This species lives approximately 2–5 years in captivity, generally between 2-3, rarely 4–5 years, fed with anabolics they can live up to 5-7 years.
Definitely not your average boring fish. As you can see from this marvelous image below.