1. The temperature difference is too large 1. Reason: Although zebrafish has not strict requirements on water temperature, it is still sensitive to the change of temperature difference. If the water temperature in which they live changes greatly, it will cause them to die suddenly.
2. Preventive measures: Breeders need to keep the water temperature constant in the future breeding process. If conditions permit, it is recommended to install a heating rod to keep the water temperature in a stable state, which can reduce the death.
2. Water quality mutation1. Reason: The sudden death of zebrafish may also be caused by too much change in water quality. Zebrafish likes old water. If the breeder changes water too much or the frequency of changing water too high, they will die.
2. Preventive measures: Breeders need to reduce the frequency and amount of water change, and pay attention to the temperature difference between new water and old water not exceeding 2 ℃ when changing water. If the water quality deteriorates rapidly, it is recommended to install filtration to slow down the water quality deterioration.
3. Illness1. Reason: The sudden death of zebrafish may also be caused by illness. They are small in size and difficult to observe after illness, which may delay the best time for treatment, resulting in sudden death.
2. Preventive measures: Breeders need to sterilize them regularly to minimize the occurrence of diseases. We should also carefully observe the state of zebrafish, and treat it in time when we find it sick.
