Can I keep more than one betta together?
It depends. Male bettas must be kept away from all other types of bettas (male and female, unless spawning), while females may be kept with other females. The females can be just as aggressive as the males however, so you have to keep a close eye on them for aggression. Females will establish a pecking order (hierarchy) at first, but then should be done with the aggressive behavior. Both genders can be kept in a community tank with other peaceful fish. They cannot be kept with other long finned fish (such as angels and guppies), cold water fish (such as golf fish and koi), fish related to them (such as other bettas-besides female/female mixes- and gouramis), and fin nipping fish (such as tiger barbs and other aggressive fish). They can be safely be kept with most tetras, mollies, and swordtails, along with African Dwarf Frogs. But each betta has their own personality, so it is up to them if they want a tank mate or not.
