Gold fishes lay eggs for reproduction. Fishes that have a growth of 6 months are used for breeding. Even though Gold Fishes lay eggs throughout the year, the ideal time for breeding is monsoon. The fries should be nurtured carefully. The male gold fish can be distinguished from the female by a bunch of white spots near the gills on the head. The abdominal region of the female gold fish will be bigger in size than that of the male, when it is ready to lay eggs. During this period, if we feel the pelvic region of the male fish, a thick fluid oozes out.
The next step is to set up a cement tank with aquatic plants which have small leaves. A female and 2 male gold fishes are dropped into this tank. In the coming days, the female starts to lay eggs on the leaves of the aquatic plants. A healthy female Gold Fish can lay up to a 1000 eggs at a time. If the eggs are not laid in the first 2 days, take back the fish to the aquarium itself. After a few days the fish can once again be put in the breeding tank. The eggs of the Gold Fish hatches in 3 days. The aquatic plants have to be removed once the fries hatch. These fishes will breed again in 6 month. Do not put the fries into an aquarium where there are other fishes. A separate aquarium should be built for keeping the fries. Even though the breeding of Gold Fish is rather easy, it needs patience and care.