It is very difficult to distinguish the male and female at traffic lights, only by shape. The male fish is slender, while the female fish is stout, which is difficult to distinguish at ordinary times.

Only in the breeding period, because the female fish is much stronger than the male fish group after she begins to conceive eggs, and the male fish is more and more colorful for a while, this period is the best to distinguish. At ordinary times, it can only be distinguished by experience.

Extended data:

breed

It is difficult to breed Neon Lipid Carp, mainly because of its high requirements for breeding water quality and special requirements for larval care, which is not suitable for novices to try.

Neon fat carp entered sexual maturity at the age of 6 months, and the best breeding period was 8 ~10 months. When the abdomen of the female fish swells, the female fish will be separated from the male fish for several days, fed enough food, and then paired into the box.

Breeding water quality requires pH 5.6 ~ 6.8, GH10 ~ 3.5 (tap water must be distilled or treated with ion exchange resin before it can be used as breeding water), water temperature is 25℃, and it is put into artificial fish nests (such as brown silk and Hypericum japonicum). The breeding tank should be shaded and kept quiet. A female fish can lay eggs 150. After spawning, the parent fish are fished out to avoid swallowing the eggs, and the fry are hatched for 24 hours.

Feeding method of larval fish

Because the larvae are small and swim less, the bait can only be eaten when it reaches the mouth. Open the bait, sieve the egg yolk water with a 200-mesh net, and then feed it with a straw drop by drop. After a period of time, when the larvae swim normally, feed the egg yolk gray water screened with a 150 mesh net instead.

Because of the slow growth of larvae, it takes longer to eat egg yolk gray water than other small species. In addition, the water quality of larval hatching is extremely soft, and the water temperature is completely different from that of daily feeding. When the larvae grow to 5 mm, they should be moved into large tanks for feeding, and attention should be paid to let the larvae adapt to the water quality.

Reference: Baidu Encyclopedia-Traffic Light Fish