Multiple bettas can coexist but some care needs to go into the planning of the arrangement. all bettas are territorial and need to establish dominance over the other bettas including female sororities. there will always be an Alfa female aka the dominant. In the wild once one has triumphed over the other the loser will usually swim off. In an aquarium there isn't enough space to get away, however, so the winner will keep attacking the loser. This can result in death.
Two females sharing a tank will often result in bullying behavior, but several together will result in some scrapping until a hierarchy is established. Once the pecking order is in place they'll usually calm down. Keep an eye out for especially aggressive females, though. Sometimes they are just too aggressive to be kept together. (NO LESS THAN 4 FEMALES) to be on the safe side.
SUGGESTIONS FOR A MALE:
Platies, corydoras catfish, mollies, shrimp, and types of loaches make good betta tankmates.
SUGGESTIONS FOR A SORORITY:
Female bettas are a bit more accepting of other fish and can probably be kept with danios and gouramis.
Be careful with the following types of fish, they aren't recommended to share space with bettas.
- Fancy guppies, as the bettas will chew on their fins.
- Schools of barbs. Sometimes they'll go after the betta's fins.
- Aggressive fish will take on a betta. These could be tiger barbs, or bluegill.
- Male bettas may attack dwarf gouramis or pygmy gouramis as they have a similar look to a male betta.
- Paradise Fish can grow much larger than bettas and have similar mentalities on territory. They'll go after a male betta and kill it.
- Any fish much smaller than a betta could be at risk of bullying.
Last edited by bettalover2033; 08-03-2010 at 06:19 PM.