1. Reason: Although yellow parrot fish does not have very high requirements for water quality, if the water used for breeding is too dirty, or the pH value, hardness, dissolved oxygen concentration and other indicators do not meet their growth needs, then it may have the problem of blackening.
2. Treatment method: At this time, the water quality needs to be adjusted in time. If the hardness is too high, it is necessary to add water softener or boil in advance to reduce the hardness. If the acidity and alkalinity are too strong, it is necessary to replace the neutral water. If the dissolved oxygen concentration is insufficient, oxygen pump is needed.
1. Reason: If you want the yellow parrot to grow normally, you should pay attention to adjusting the water temperature. They are very sensitive to water temperature, if the water temperature is too high, too low, or in a short period of time there is a large change, it will lead to their inability to adapt, there is a problem of body blackening.
2. Treatment method: Place a heating rod in the water tank, slowly raise the water temperature to about 26 ℃, and keep it stable. After that, don't change too much water every time you change water, so as to avoid sudden change of water temperature. Be careful not to raise the water temperature too much suddenly, or the fish will not be able to adapt.
