I have 11 bettas, 6 males and 5 females. I don't breed them, I just have found some very pretty females.
I feed Hikari gold and freeze dried bloodworms. The Hikari I feed 3 or 4 days a week and then feed the bloodworms as a treat once or twice a week. All of my fish love both of these.
I have 1 male that would chase tiny bugs that happened to land on the outside of his jar and if that bug made the mistake of landing in his water, he was like a great white shark breaching to catch it. He loved those live meals.
Hope this helps some.
Good luck
judy