The male of the species is considerably larger, has much larger fins and is much brighter in colour than the female.
male
She breeds with a male Betta Fish.
yes
No.
Your betta fish is a female if she has smaller fins than an average male.
Yes they will.
the male betta fish makes the nest.
No. Betta fish will attack each other no matter the sex.
No because if a male betta is not atracked to the female they will try to reserve there territory
Do you mean female and male? If so, then the female betta fish is smaller and less elaborate than the male.
the female betta fish are released from a vent while a male embraces her
Yes. Betta Fish do change their coloer every now and then. Or if you have a male, he will change his coloer if hes chaseing a female Betta Fish. Or if he sees another male Betta Fish.