What is the reason for the high mortality of guppy fry and how to deal with it?

The mortality rate of guppy fry is high, mainly because the guppy fry is too weak to adapt to the external environment. If the density of fish is too high, the lack of oxygen supply in the water will cause the death of fish fry. If the water body fluctuates too much, the change of water temperature and acidity and alkalinity will easily cause the death of fish fry. Fish fry with poor constitution are also very easy to die. Therefore, in addition to maintaining the stability of the living environment of the fry, attention should also be paid to enhancing the physical fitness of the fry in order to avoid their death.

1. what is the reason

for the high mortality rate of guppy fry? Guppy fry is very fragile when it is born, and its adaptability to fluctuations in the external environment is not strong. At this time, the density of guppies in the fish tank is too high, and the lack of dissolved oxygen in the water can easily cause the death of small fry due to lack of oxygen. In addition, the fluctuation of water temperature should not exceed 1 C, and the fluctuation of acidity and alkalinity should not exceed 0.5, otherwise it is very easy for small fry to die. In addition to environmental fluctuations, the strength of the fry itself also has a lot to do with it. If the mother fish can't keep up with the nutrition during pregnancy, the fry will be very weak after birth, and it will die if the environment changes little, which will increase the mortality rate. In addition, it is better to separate the parent fish after the birth of the fry, otherwise there will be a situation of eating fish, which can also increase the mortality rate of the fry.

2. How to deal with

the high mortality rate of guppy fry? 1. Choose a suitable large fish tank to avoid the occurrence of dead fish due to the lack of oxygen in the water caused by too many fry.

2. The parent fish should be fished out and raised separately after the birth of the small fish.

3. Change the water regularly to ensure that the acidity and alkalinity of the water body will not change greatly. The water temperature should be kept stable, the fluctuation should not exceed 1 ℃, and special attention should be paid to keeping the water temperature consistent when changing water.

4. During the pregnancy of the mother fish, nutrition can be increased appropriately, and shrimp or other foods with high protein content can be fed to make the newborn fry better. A few days after the fry is born, it can be fed the same food to increase nutrition.