Fish long black spot is not necessarily sick, may also be frightened, so that it has a stress response. In view of this situation, do not need too much treatment, as long as a period of rest can be, during which we must avoid being frightened again, reduce the impact of light and noise on it.
If the water quality is not suitable for the fish, for example, the hardness is too high, the dissolved oxygen is too low, or the pH problem, it may also cause it to grow black spots. In view of this situation, only need to change water regularly, improve the state of the water body, let it slowly adapt to the recovery, but do not change too much water each time.
Black spot may also be black spot disease, this disease will lead to thin fish, and the color of the body surface will be dim, and even affect its breathing, generally due to parasites, can be treated with white film. However, the cost of internal treatment is very high, so it is not very expensive fish, and treatment is not recommended.
If the fish grow in a place with sufficient light, environmental factors will also make it have some black spots, this is not a disease, but may affect the ornamental, so it is best to pay attention to shade, as far as possible to avoid receiving direct light, especially the discoloration period of the fish, need to be placed in the shade.
