| At the time of breeding, it is easier to see the changes | | | | tank. The optimum temperature is 20ºC for |
| in the male goldfish. The male develop breeding | | | | breeding. Transferring at once is possible as the |
| tubercles that are white and of the size of pin head. | | | | goldfish eggs are fertilized already. |
| The female goldfish cannot be recognized easily. The | | | | The fertile goldfish eggs look clearer but the unfertile |
| female has a bigger and full abdomen. When the male | | | | eggs look furry. The danger of fungal attack is |
| goldfish is ready to breed, the fish performs the ritual | | | | imminent on the unfertile eggs can be on the fertile |
| of spawning chase. The male swim closely following | | | | eggs also. To avoid this goldfish eggs are observed |
| the female and hit her abdomen repeatedly for several | | | | with rapt attention. The water can be only six inches |
| hours. | | | | deep. The fish fry after hatching can not take more |
| At the prime age, female goldfish lays anywhere | | | | water pressure. To ensure this the water can be only |
| between five hundred and one thousand goldfish eggs. | | | | about six inch deep. This water being shallow allows |
| The male spray milt on the goldfish eggs and make | | | | the fish fry to swim with ease. |
| them fertile immediately. These eggs are released in | | | | It is normal for the fish fry to sink down to the bottom |
| batches. | | | | of the tank once the goldfish eggs are hatched. The |
| The eggs should be transferred to another goldfish | | | | new born fish are attached with full yoke sac that is |
| aquarium immediately. New goldfish aquarium contains | | | | translucent. This sac will sustain the fish fry for twenty |
| water maintained at the same temperature. Before | | | | four hours. After twenty four hours, the fish fry swim |
| this process, the goldfish eggs are normally rinsed with | | | | around in search of food. |
| water with the same temperature of the previous | | | | |