Join Date: Sep 2006
Location: Northern Virginia
Bettas can work in a community tank. Bettas can be an utter disaster to a community tank. It all depends on the betta and the other fish in the tank, and you can't tell ahead of time. That's the bad. The good is you can transfer the betta to a tiny tank temporarily (a good size flower vase will work short term) while you put together a better solution to house it if things go south.
I mean, common sense suggests that you should avoid putting a betta in with territorial top swimmers, bright colored fish with long, flowing fins, and proven fin nippers, but beyond that, the field is wide open. It also ought to help to add the betta last (I would suspect).
Logic is only the beginning of wisdom