Artificial rearing of kissing fish

Kissing fish do not have a fixed breeding season under captive conditions, and it is not difficult to breed. It is better to feed in pairs and feed in large quantities in order to facilitate reproduction.

It is difficult to distinguish between male and female, and it is almost impossible for the larvae to distinguish between male and female. Adult males generally have wide and long buttocks and slender bodies, while females have narrow anal fins, broad and thick bodies and slightly bulging abdomen. When the female is sexually mature, the abdomen is swollen because it is filled with eggs, which is very obvious when looking down from the top of the fish tank. Kissing fish are oviparous and fertilized in vitro, generally using those whose body length is above 20cm as parent fish. The breeding was carried out in a large aquarium with a size of more than 80 × 40 × 40cm. The old water for 5 days was used, the water temperature was between 25 and 27 ℃, the pH value was 6.8 ℃, and the hardness was 9 mi 11. A layer of floating aquatic plants was placed on the water surface of the box. The male fish keeps turning around the female fish, and when it reaches the appropriate position, it is wrapped in a "U" shape and squeezed around the female fish. The male fish ejaculates immediately after the female fish lays eggs. The female can lay 500 ~ 10 000 eggs at a time, with an average of 3000 eggs.

Its eggs are floating eggs, floating in the upper layer of the water like oil, floating aquatic plants can prevent them from being swallowed by their parents. After laying eggs, the parent fish can be fished out and the eggs can be hatched artificially. The larvae can be hatched in 20 to 24 hours. After the larvae can swim in 2 to 3 days, they should be fed a large amount of ash water, otherwise they will starve to death. Feed the little red worm for 3 or 4 days after 3 days, and then feed the big worm. At 15-20 days, the fast-growing larvae should be divided into two or three boxes to ensure a higher survival rate. Sometimes a litter of fish can survive more than 9000, reaching sexual maturity in a year or so. The life span can reach 6-7 years.