Usually, it takes 3-7 days for fish to spawn. Usually, the hatching time of small fish is closely related to the water temperature. When the water temperature is 15-20 ℃, the hatching time is relatively long, which takes about 5-7 days. When the water temperature is above 20 ℃, it only takes 4-5 days. If the water temperature is 20-25 C, it can be hatched in 2-3 days.
fish eggs after hatching? 1. Feeding every other day: Fish eggs do not need to be fed on the first day of hatching. At this time, they also need to absorb the yolk sac, so they will not eat, and the food falling into the tank will spoil the water. Wait until the next day before feeding.
2. Choice of feed: The best choice for newly hatched larvae is migratory water as feed, which is not only nutritious, but also preferred by fish. If not, you can change to cooked egg yolk or soybean milk and other feed with high protein content. It should be noted that if you feed cooked egg yolk, you must control the amount, wrap it with gauze, and twist it a little each time.
3. Do not change the water: The fish larvae cannot change the water in the early stage. Once the water quality fluctuates, it will do great harm to them. The first change of water should be a week after hatching. Be careful when changing the water. Do not suck the fish out of the tank.
