away by the pump, want to avoid the fish fry being sucked away by the pump, in fact, it is very simple, just need to cover the water inlet with a layer of silk stockings. The size of the fry is relatively small, the ability to swim is also very weak, so if the pump flow is too large, it is easy to suck it away, several times do not suck away, will also consume a lot of physical strength, so it is best to reduce the flow. In addition, the fry can also be raised in a hatching box and then released after being raised.
small fry 1, feeding: raising small fry should first pay attention to feeding. The newly hatched fry does not need to be fed on the first day, and it can also absorb the yolk sac for nutrition. Wait until the next day, the yolk sac is basically absorbed, this time need to feed food, the best food is water, but can also feed cooked egg yolk, but can not feed too much, otherwise it will spoil the water.
2. Change the water: As the fry is sensitive to the water quality, the water should not be changed too early. Usually, the water can be changed for the first time one week after hatching. Water should also pay attention to the amount of water, if too much water is changed at one time, it will stimulate the fry, usually about a quarter of the water can be changed, the temperature before and after the water change should be consistent.
3. Temperature control: Small fry also have requirements for temperature. In order to make them grow as soon as possible, the temperature should be appropriately higher, usually 1-2 ℃ higher than that of cultured fish. In this way, the metabolism is more vigorous, not only growing fast, but also not easy to get sick.
