How do regular ordinary goldfish mate?

How can u tell if your female Goldfish and your male Goldfish are going to mate.?

• Answer:

  The male goldfish will get white spots on it's gill cover, and the female will start looking swollen because she has eggs inside her. Sadly though, most times when goldfish mate, they eat their eggs and you will get no young. If you try many times though it will probably work! Hope this helps!