1. Can small goldfish reproduce naturally in the fish tank If there are mature goldfish of opposite sex in the fish tank, then small goldfish can reproduce naturally in the fish tank. Because goldfish breed naturally, after they enter the breeding period, mature goldfish will pair. After they are successfully paired, they will lay eggs and fertilize.
Goldfish are fertilized and hatched in vitro. When they reproduce, the female fish will lay eggs first, and then the male fish will be fertilized. After the eggs are fertilized, after a period of incubation, small fish will be born. Newborn fish are fragile, so breeders should keep the environment stable and comfortable, so that they can grow better.
2. What conditions do goldfish need for breeding1. Environment: Goldfish does not have too high requirements for breeding environment. Breeders only need to keep the water temperature between 20-25 ℃ and keep the water quality clean and refreshing. If conditions permit, it is best to install an oxygen pump to ensure sufficient dissolved oxygen in water. A filter can also be installed to reduce the frequency of water change and avoid discomfort caused by water quality fluctuation.
2. Isolation net: It is best for breeders to place an isolation net when they produce, so that fish eggs can fall directly to the bottom of the tank and avoid being eaten by parent fish. When they give birth, breeders need to keep their surroundings quiet to avoid scaring them.
