THey will most likely have eggs. Be careful. You might want to put a divider in the tank.
male
Only female Bettas can be kept together. That too will only work if they are given reasonably roomy conditions and plenty of cover (plants) and hidey holes. Male betta fish can/ will fight to death if there is another male fish in the tank, a male will sometimes eat a female so your best bet is to have a single betta or a female and a female.
She breeds with a male Betta Fish.
You put them together when the female is full of eggs, and when the male builds a bubble nest.
No, you should never keep a male and female betta fish together for long time periods. They should only be put in the same tank for breeding purposes and then separated after.
yes
Yes all bettas can mate with other bettas. " regular betta fish" there are different types and they can all breed together.
No.
Male Bettas can not be kept with any other members of the Betta family. They can be kept with other species quite safely but will not tollerate another Betta (male or female) in their vicinity. Female Bettas can be kept together OK.
Your betta fish is a female if she has smaller fins than an average male.
Yes they will.
From a female Betta. Then the male Betta fertilizes them when they breed together.