How long does it take a pregnant goldfish to lay eggs?

Goldfish (Carassius auratus auratus) need enough water and the right temperature to breed, especially in pond settings. Breeding usually occurs after a significant temperature change such as occurs in the spring.

If you have a gravid (carrying eggs) goldfish, you will need the males to make egg laying possible. The males will chase, bump and nudge the female, and that will stimulate egg release. The eggs will attach to aquatic vegetation and hatch within 48-72 hours. It would be a good idea to remove all other fish at that time. Goldfish, and others, are known to eat the fry.