How do bettas breed?
Under the right conditions, male bettas will embrace a female betta and literally squeeze the eggs out of her and fertilize them. The female is then removed from the spawning tank and the male takes care of the eggs and newly hatched fry (baby bettas) in a bubble nest. This is exactly what it sounds like, a nest made of betta spit and bubbles. Breeding should only be attempted after researching every aspect of betta spawning, and after you realize the tremendous amount of time and responsibility it takes.