what are you saying i should have more than one female and one male to mate with each other?
??? I think you missed my point altogether..
I'm saying I think you probably need to do a lot more research into this and all it entitles before attempting to breed them.
When the female is ready they say she develops vertical lines on her body.
Your female may be to old,
Not all are compatible with each other,
Betta breeding often results in many failed attempts,
Sorry but just having you ask this original question tells me you need to do more research before you try this mating bit..