Betta
Before mating, put two tanks near each other for a few days and put them together in the tank. The male betta breathes air from the surface to make a bubble nest. This nest attracts the female for breeding. Once the nest is complete, the male Betta will try to get a female Betta to lay her eggs by showing his fins and dancing around her. After that, the male betta will keep annoying and bullying the female betta. This shows that the male is stronger than the female. It also makes the female betta fish tired. A healthy and strong female betta will lay the eggs several days later. At that time, the male will help the female by pressing on the female's belly to squeeze out the eggs. It takes several days to lay all of the eggs. Once the female Betta lays her eggs in the nest, the male Betta will fertilize them by releasing his sperm over the eggs.