petnet has learned that about tens of thousands of years ago, the ancestors of the blind fish were carried by currents to underground caves with little or no light. As the long years passed, the eyes degenerated from useless and became the blind fish they are today. For ordinary animals, it is impossible to live without eyes, but although the eyes of blind fish have lost their proper function, they can rely on the special senses of other organs to carry out normal life. A fast-swimming fish that swims freely in the water without bumping into weeds, rocks, or other fish. That is to say, the degeneration of the eyes did not bring any beneficial effect on its life.

Blind fish is native to Mexico and has now become a speciesof tropical fish lovers., is also one of the objects of concern to zoologists. When artificially reared, blind fish have less stringent requirements for water quality, and usually grow well under the water temperature of 2032 °C. Blind fish can be housed with other tropical fish with similar rearing conditions, but if conditions permit, it is best to keep it in a separate tank. Blind fish are not picky eaters and prefer to feed in a dark environment.

Blind fish can be bred artificially. Between 7 and 11, the water temperature should be kept at about 26, and the size of the fish tank for breeding is preferably 804040 cm. Blind fish are oviparous, and the body length of the parent fish should be more than 6 cm. The juvenile female fish is more plump than the mature male fish.

The breeding of blind fish is relatively easy, and people who are new to tropical fish will also get satisfactory results. The specific method is to pick a good-colored male fish and a plump female fish in advance, and keep them separately for a week, during which time they should be given a certain amount of water fleas to eat. Shortly before dusk on the day before you are ready to breed, place the broodstock in a breeding tank with conditioned water and a layer of goldenrod on the bottom. The broodstock can lay eggs the next day. Before spawning, the male and female fish begin to show love and swim around each other in a circle. This action takes several hours. Then, the male and female swim side by side and swing their bodies rapidly. Finally, the female ovulates, and the male fertilizes it. When the spawning is nearing the end, the male will stop chasing the female, but the female often ignores the departure of the male and continues to ovulate. At this time, the broodstock should be fished out immediately, otherwise the female will eat her own egg.