How many kinds of fish are there?

1._ Li Yu-Pearl _ Li, Sail Wing Black _ Li, Red Wing, Qin Wei, Jin _ Li and so on. 2. Swordtail fish-Red Sword, Lan Jian, Cinnabar Sword, Jin Jian, Sailing Sword, Qinwei, Double Sword, Black Sword, White Sword and Yellow Sword. 3. Peacock fish-Peacock fish is also known as "rainbow fish" and "million fish", such as yellow-tailed skirt, Moscow blue, sword-tailed peacock and all strains of peacock fish. 4. Moon fish-commonly known as full fish, likes to cross, so there are many new varieties. Such as black-tailed sun, red sun, black-winged blue moon, etc. 5. crane-billed fish-golden crane-billed fish and common crane-billed fish.

Throwing fish means that female fish lay eggs. When the female fish is sexually mature, it will start to lay eggs during the breeding period. The male fish in the fish tank will fertilize the fish eggs, and the fertilized fish eggs can hatch young fish when they reach certain hatching conditions. Generally, when casting seeds, it is necessary to take the female fish out of the polyculture pond, put them into a special spawning pond, and select the mature male fish for fertilization. After the eggs are fertilized, the females and males are taken away, waiting for the eggs to hatch.