Well,yes and no.As soon as they finish spawning you should take the female out of the tank or he will kill her.After the babies hatch and become free swimmers out of the nest you should also take him out or he will eat them.Feed the babies micro worms.I know this is more than you asked but i thought it mite help.
They most certainly can. In Asia these fish where originally bred to fight and people would wager on what fish would win. Bettas that are bred in America are more for show but are still very agressive.
The male Betta looks after the eggs and the fry when they are wrigglers but once the fry are free swimming. In the wild they would naturally move away from the males area and find areas of their own to live in once they were capable of doing so. This can not happen in an aquarium, so the fry must be removed as soon as they are free swimming otherwise the male will eat them.
NO they will kill themselves please don't even try.
why would you want to kill a betta D:
yes betta fish have to live alone or one will kill the other.
yes
The Betta fish want to kill eachother. That's what all Betta fish want to do, that's a natural thing.
Betta fish are very aggressive. They pick at their scales and then they're gone!
No.
Yes, Betta Fish are extremely aggressive and they will most likely kill your other fish.
Np, but they will bite. Yes, they will fight to the death.
No...betta fish are usually aggressive and might kill the angelfish.
Well, if you love your Betta fish, then it should live by itself. But if you add another Betta to your current Betta fish's tank, then they will start a fight because Betta Fish are Siamese fighting fish and if one Betta is in contact of another Betta, the possible reason would be a fight between them two.
LOL. To be honest yes. But it will also kill the betta.