The red goldfish can breed. In theory, the red goldfish can reproduce naturally by itself. Their estrus and spawning seasons are from April to July each year. If the conditions are right, they can breed multiple times in the same year. After the Heding red goldfish enters the breeding period, it can be found that there are very obvious star chasers on the male fish, that is, small white spots appear on the pectoral fins. Therefore, you can use this to distinguish the number of male and female fish in your fish tank. However, it should be noted that the fertilization rate of this natural reproduction method is not high, and it is easy to cause harm to the adult fish.

If you want red goldfish to breed by themselves, you need to ensure that the fish tank is in The goldfish has male and female, and the water temperature should also be raised to a certain extent, and kept at about 25 ℃. If males and females are chasing each other, it is natural breeding.