the size of it's fins and body
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.
Bettas are not a sport fish so records of size have never been kept. A well grown male Betta has a body length of around 3 inches.
A betta is a fish of the species Betta, especially Betta splendens, commonly known as the Siamese fighting fish.
Male betta fish are really colorful and generally larger. Female betta fish are clear colored and small. Male betta fish are probably the easiest to find as well.
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.