Kept under optimum conditions a Betta can breed around every 30 days or so. If this is allowed to happen the fish will burn out and die in around 18 to 24 months.
I use a divided fish tank. I put male on one side and female on the other. Let them watch each other through the glass for a while. Once they get used to each other, and the male has made his bubble...
first buy a female and a male betta but make shure that they are close size and healthey then put them both in a jar next to each other and feed them both a lot 3 days later take the female out of...