To the best of my knowledge no one keep those kind of records. Bettas are mature at 12 months, past their prime at 2 years old and ancient fish at 4 if they live that long.
I have a Betta fish that is now over 5 years old because I change the water once a week with 2 gallons of purified water and I add about 20 drops of Splendid Betta Complete Water Conditioner to it. Using the water conditioner is a MUST to ensure that your Betta fish will live a very long life. I also feed my Betta fish 4 pellets of Hikari Betta Bio Gold once a day in the morning and 1 pellet at around 7pm.
the oldest living is 10 years old kept under lab conditions but is usually up to 6 years max
No one knows. There have been no records kept.
The wild betta from southeast Asia
No betta fish are carnivores.
other Betta fish and the bigger fish.
Betta fish do not eat fish.
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.
A betta is a fish of the species Betta, especially Betta splendens, commonly known as the Siamese fighting fish.
yes
Sure we have betta fish in cuba
betta fish are specifically bred for fighting
No. Betta fish will attack each other no matter the sex.