1. White dots appear: After female Thai betta eggs embracing, a small white dot will protrude from the position of reproductive hole, and the closer to mating time, the white dot will become more and more obvious, and the female fish will be more obvious than the male fish.

2, showing marriage color: Thai betta female fish will also have obvious marriage color and marriage lines on their bodies after holding eggs. In normal breeding, the body color of female fish will be relatively dim than that of male fish. However, when they hold eggs, their bodies will appear marriage color, and they will also appear marriage lines, which will be more bright than usual.

3. Abdominal enlargement: The abdomen of Thai betta fish will also enlarge after holding eggs, but the enlargement of their abdomen is not particularly obvious, so breeders need to observe carefully before they can distinguish it.

1. Estrus: Thai betta male fish will spit bubbles to build nests after estrus, and female fish will appear marriage color after estrus.

2. Breeding: When Thai betta breeds, the male fish will try to show their beauty and dance courtship dance. When the female fish accepts the pursuit of the male fish, the male fish will wrap its big tail around the female fish's body, at this time, the female fish will produce fish eggs, and the male fish will be fertilized immediately.

3. Hatching: After successful fertilization of Thai betta eggs, the male fish will put the eggs into the built bubble nest with their mouths. But also flap their fins near the fish nest to keep enough oxygen around the eggs. After waiting for about 2-3 days, they can hatch small fish.