A betta fish is anywhere from 1 to 2 inches.
Betta fish can be from 2 to 4 inches long when fully grown.
Betta fish grow to be an average of 2 inches from head to the beginning of the tail.
a long time
Depends what fish you have, if the fish are colourful and have long fins then it'll probably bite it to death, every betta is different.
Bettas are dumb as rocks. If you put another betta, any other anabantid like a gourami, or any long-finned fish in with a betta, the betta will fight it because he will think it's another betta. If you put a short-finned fish in with your betta, they'll live together peacefully.
other Betta fish and the bigger fish.
Betta fish do not eat fish.
No betta fish are carnivores.
Well, if you love your Betta fish, then it should live by itself. But if you add another Betta to your current Betta fish's tank, then they will start a fight because Betta Fish are Siamese fighting fish and if one Betta is in contact of another Betta, the possible reason would be a fight between them two.
Betta fish do live by themselves, as int hey don't travel in groups. But more then one betta inhabits a space. They live in mile long rice paddies.
A betta is a fish of the species Betta, especially Betta splendens, commonly known as the Siamese fighting fish.
Any fish that does not have long fins. p.s. i have a betta named Frodo lol