If I ever decide to get a fish, I think I'll get a Betta fish. It's small and colorful!
I don't know anything about those fish. Can you tell me more about them?
They are generally small. Their sizes range from under 2.5 cm to 12.5 cm. 
So Betta fish are colorful? Are they popular ports?
Yes they are colorful. They are also considered anabantoids. they can breathe atmospheric air using an organ called the labryinth.