I guess you are referring to the Bettas "Labyrinth" this is a chamber in the skull of the fish that allows it to 'breath' air. This adaptation is what enables the fish to survive in adverse (low Oxygen) water conditions in the wild. When you see a Betta rise to the surface of the water and take a gulp of air he is using his 'labyrinth'.
no fish around
they shed every 2 weeks
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.
becuse thay bite other fish