One of the unique characteristics of betta fish is their aggressive behavior towards other bettas of the same gender. Male bettas are particularly known for their territorial behavior, and will often fight other males if they are placed in the same aquarium.
When kept as pets, betta fish require a suitable aquarium with proper filtration and temperature control, as well as a varied diet that includes live or frozen foods. It is important to ensure that the water quality is maintained to prevent health issues such as fin rot and bacterial infections.
Overall, betta fish can make great pets for those who are willing to provide them with the proper care and environment they need to thrive.