Betta fish are beautiful, but their aggressiveness is a problem. You can avert problems and enjoy having more than one male betta, without having to purchase another tank. All you need is to modify the tank you have.
Siamese fighting fish, or betta fish, rank amongst some of the most popular aquarium fish because of their low maintenance requirements and flashy good looks. Sadly, they rank only behind goldfish as the most abused aquarium fish in the world.