its fun to breed fishes and esp those with interesting rituals and stuff, like the bubble nest, but theres a lot of responsibility in it and maybe even alot of money needed.....so think about that first.
Heres what I know: a male that is happy and ready will build a bubble nest. Live food is best prior to breeding-also makes them very active. I think it is important to use at least a 10 gal. tank with many decor and hiding places for the female to hide-if you have a vase or a jar or those stupid pet store small betta tank gimmicks dont breed them. Keep the water warm-75 to 80 F. Cover the top of the tank to keep the air humid and bubbles from popping. Water level not too deep-preferable no substrate/gravel so the male can see the eggs and babies. A female in sight may encourage him to build nest faster. You may introduce her in a cup first or if you feel ready let her in. They will display to each other-she will show vertical stripes. They may take awhile until the actually breed-may take up to a day? hence the large area and hiding places until the female is willing. Warning-females may take a lot of injuries and beating from this-that just seems like the way it is unless you get lucky-you will know when they mate-bodys curled together, eggs wil fall he will pick up and blow into nest-for minutes then it will be over.remove female and take good care of her. male will do his job-maybe keep lights on so he can see eggs. after a day or two eggs will hatch-leave male with nonswimming babies until they can swim horizontally then remove him.