? The cycle of tropical fish giving birth to small fish varies greatly. Small fish can give birth once a month, while big fish only give birth once or twice a year. Fish can only reproduce after they are sexually mature. During the breeding period, they will chase each other to complete the pairing. After pairing, the fish will find a place to lay eggs or small fish. Fish eggs are fertilized outside the body, while small fish are fertilized inside the body. The only difference between the two is where the fertilized eggs grow up, one outside the body and the other inside the body.
reproduce? 1. Guppy: Guppy is a very easy fish to reproduce. It will be sexually mature when it grows to 4-5 months, and there is no fixed breeding period. It can give birth to small fish all the year round. It can produce about 10-120 tails at a time. In order to ensure health, it is necessary to control the water temperature at about 26-28 degrees Celsius.
2. Zebrafish: Zebrafish is an oviparous fish. It is sexually mature when it is 4 months old. During the breeding period, the water temperature should be kept at 25-26 ℃. Because it will eat its own eggs, nylon mesh plates must be placed in the fish tank so that the eggs and parent fish can be separated in time. Unfertilized eggs need to be removed.
3, Mary fish: Mary fish and guppy are similar, are ovoviviparous small fish, after fertilization in the body will store sperm, until ovulation when the combination, thus living fertilized eggs. The fish can produce 10-140 fish at a time, and can reproduce once in three to four weeks.
