Betta fish are also known as Japanese or Siamese Fighting Fish and this is because they can be quite aggressive - especially towards one another. Male betta fish in particular are the most aggressive, so should not live together. Female betta fish, on the other hand, can live together in Sorority tanks. male betta fish, betta fish fighting, betta fights, aggressive betta fish, fighting fish, betta fish tank, betta fish aquarium, male bettas, japanese fighting fish, siamese fighting fish
