The betta, also known as the Siamese fighting fish, has become a popular fish among hobbyists primarily because of the male’s beautiful colors and lavish finnage. More than one female can be kept in a peaceful community setting, as long as there are no fin-nipping fishes, such as some of the characins and barbs.
The male betta, however, should either be housed in a 1-gallon or more container as a single specimen or as the only male of its species in a peaceful community tank setting. Otherwise, the male will attack and tear other the fins of other male bettas, sometimes resulting in the death of one of the combatants.
A female and a male should only be kept together if baby bettas are desired. The male will harass the female before, during and after spawning, and, unless sufficient hiding places are provided, may even kill her.
The betta can be housed in an aquarium that is moderately decorated with plants, rockwork and driftwood. Avoid any decorations or gravel with sharp edges. Plants should be kept to the sides and back of the tank, as well as a few of the floating varieties at the surface. This fish is an excellent jumper, so a tight-fitting cover is a must.