Some rodent eggs will adhere to the bottom or wall of the cylinder after laying eggs, so it is difficult for breeders to clean them up. At this time, you can choose to use a blade or scraper to scrape back and forth several times, and then you can scrape the fish eggs from the cylinder wall. But when scraping, the breeder should be careful not to destroy the fish eggs, otherwise they will not hatch. If conditions permit, it is best for breeders to prepare a special breeding tank for them, in which sunken wood or other objects can be placed, so that fish eggs have a place to attach. If fish eggs are laid on other objects, the breeder can suck them out with a straw and hatch them together.

After the breeder puts all rodents and fish eggs in one position, it is necessary to keep the water temperature between 24-26 ℃ first. The higher the water temperature, the faster the hatching time, but the maximum cannot exceed 26 ℃. Keep the water clean and fresh, and the dissolved oxygen in the water is sufficient. Wait for about 3 days, and the eggs will hatch small fish. During hatching, breeders need to carefully observe the state of fish eggs, and pick out unfertilized fish eggs in time to avoid polluting water quality.

Because newly hatched small fish are not very flexible, breeders cannot use filters, otherwise the small fish may be sucked away. In addition, newborn fish do not need to be fed within 3 days, and breeders can feed some cooked egg yolks or shrimp eggs in good years after 3 days.