They are Both fish
Yes. The Betta splendens (scientific name) known also by its common names Siamese Fighting-Fish and the Siamese Fighter.
They can but it's best they don't because can get a common fish disease.
No betta fish are carnivores.
other Betta fish and the bigger fish.
Betta fish do not eat fish.
Common signs of aggressive behavior in betta fish include flaring their gills and fins, chasing or attacking other fish, nipping at fins, and displaying dominant body language such as puffing out their gill covers. It is important to monitor your betta fish's behavior to ensure a peaceful tank environment.
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