1. The water quality is too poor 1. Reason: The eyes of Arowana may be sunken due to the poor water quality, and they are sensitive to the change of water quality. If the content of nitrite and ammonia in water is relatively high, they will be poisoned.
2. Solution: Breeders need to change water immediately to keep the water clean. At ordinary times, it is best to change water once a week, but the amount of water changed each time should not exceed a quarter of the total amount of water. If conditions permit, it is best to install a circulating filtration system to slow down the deterioration of water quality.
2. Bacterial infection1. Reason: The sunken eyes of Arowana may also be caused by bacterial infection, and their eyes are fragile. If injuries around the eyes are not treated in time, they will be infected with bacteria.
2. Solution: Breeders need to apply erythromycin ointment to sick fish first to avoid re-infection around their eyes. Then give them a medicated bath with oxytetracycline. You can put 5-8 tablets of oxytetracycline in 100 kg of water. Take a medicated bath once a day for 15 minutes each time.
3. Stress response1. Reason: The sunken eyes of Arowana may also be caused by too much environmental change, such as sudden change of water temperature, too much water change, and water flow impacting eyes during water change, which will lead to sunken eyes.
2. Solution: Breeders need to ensure that their living environment is stable, the water temperature should be controlled between 25-28 ℃, and the PH value should be kept between 6.5-7.5. When changing water for Arowana, pay attention to the fact that the amount of water should not be too large. Water should be injected slowly, so as not to impact the fish and eyes.
