What if the parrot fish turns black?

Parrot fish is a kind of ornamental fish that many people like to raise. We all know that parrot fish is famous for its bright colors and has great ornamental value, especially the blood parrot fish is loved by people, but the maintenance of parrot fish needs to be paid special attention. Otherwise, parrot fish will easily change color because of environmental changes or illness, affecting viewing. Parrot fish blackening is a situation that people tend to appear when raising parrot fish. Let's find out why the parrot fish went black and how to solve it:

What are the reasons for the blackening of parrot fish?

1. Temperature: parrot fish are prone to stress due to low water temperature and drastic changes in water temperature, resulting in dim body color, loss of bright luster, and even black stripes or markings (the fin and tail of the parrot fish turn black). Therefore, in the process of feeding, it is best to keep the water temperature within the range of 25-28 ℃, and the water temperature difference before and after each change of water should not exceed 0.5 ℃. In addition, we should also pay attention to heating and oxygenating the fish tank in winter.

2. Water quality: the blackening of the mouth or gills of parrot fish is due to poor water quality or poor water quality. Water should be changed every 2-3 days, 1/3 or 1/4 water each time.

3, disease: parrot fish has black spot disease, the fish body grows "black spot", showing gray-white. Brine with a concentration of 2% to 3% can be washed once a day (5-10 minutes).

4, frightened: parrot fish will also appear black spots when they are frightened, which will disappear after a period of time.

What should I do if the parrot fish turns black?

The most common reason for parrot fish blackening is black spot disease. The pathogen of black spot disease is mainly water mold and mold, parasitic on fish wounds and eggs, is a more common fish disease. The main causes are fish injury, scale exfoliation and so on, resulting in germs invading the wound.

[cause of the disease] during fishing and transportation, the fish was infected by mold spores after being injured by trauma or parasites. Be careful not to hurt the fish when fishing and transportation. a small amount of salt can be put into the aquarium of new fish to inhibit the occurrence of water mildew and pay attention to cleaning and disinfection when putting live bait. The water quality is kept clean to prevent the growth of water mold. It can generally prevent the occurrence of this disease.

[symptoms and pathological changes] the fish grew "black spots", which were gray and white, and the hyphae wound and adhered to the cell tissue of the wound, causing tissue necrosis. At the same time, the diseased fish lost their appetite and finally died. The disease occurs all the year round.

[treatment]

1. Sprinkle 250g salt and 250g baking soda mixture on 100cmx55cmx45cm's fish tank for several times and the effect is remarkable.

2. Dissolve 0.3 grams of malachite green or methylene blue in 100 kg water and wash the fish for 10 minutes. After a few days, the mycelium exfoliated.

3. 2% murine 3% brine, once a day, 5 murals for 10 minutes each time.

4. 2/1000000 (2ppm) potassium permanganate and 1% salt water were mixed and the diseased fish were soaked for 20 Mel for 30 minutes.

5. Increase the water temperature to restrain the growth of water mold. And a 15-watt ultraviolet lamp can be used for several hours a day to effectively inhibit and eliminate water mold.

Parrot fish blackening is a problem prone to improper maintenance of parrot fish, the causes are multiple, but the most common is caused by black spot disease, so in the maintenance of parrot fish, we must pay attention not to let the fish get hurt, but also pay attention to the cleanliness of water quality.