The tail of the koi fish is like boiling water, what is the disease, how to treat it

That's a goldfish scald. Scalding tail disease is the most common disease of some goldfish with large tailfin when the climate is hot, such as goldfish such as hot climate, red head and red head, and five-flowered phoenix.

There are many speckled bubbles on the tail fin strips of goldfish, and millet grains are large, also known as bubble disease. In severe cases, there are both bubbles on the tail fin and blood-like red lines. This disease is characterized by fish heads facing down and tails floating on the surface of the water, which is a common fish disease in summer in large open-air feedlots, and goldfish raised indoors rarely get this disease.

**。In summer, the weather is hot, the high temperature continues, the water temperature of the fish pond increases, the water quality is too fat, the pool water turns green, the algae multiply, the photosynthesis is too vigorous, a large amount of oxygen is produced, the bubbles continue to rise, the oxygen in the water reaches saturation, the bait is insufficient, the goldfish swim up and down in search of food, and the rising bubbles are attached to the tail fin, and the symptoms of scalding the tail appear.

The disease is not contagious, the threat to goldfish is not great, and there is rarely a danger of death, but after 2-3 times of scalding, the large tail fin becomes a small tail, or even a bald tail, thus losing its ornamental value.

In the hot summer, when the water temperature of the pool is high, if the fish body is traumatized, the wound will be red and swollen, ulcerated, and infected with diseases. In severe cases, the caudal fin has no caudal fin membrane, exposing the fin stinging blood, and the pectoral fin and dorsal fin are also covered with air bubbles, and the whole body floats on the surface of the water, which can also cause death if not properly managed.

Prevention and control methods. Once scalded tail disease is detected, the basin should be filled with new water or replaced with new water to reduce the water temperature so that the water does not turn green and reduce photosynthesis. Cast more or more fresh bait.

At this time, although the fishtail is still floating on the surface of the water, there are bubbles alone, and it will be fine overnight. If you have a traumatic injury, you can apply red mercury or purple syrup to the wound and soak it in a sterilization pool for 5-6 minutes, and it will return to its original state in 2-3 days.

Precautionary measures. After 10 o'clock every day, cover the fish pond and tank basin with bamboo curtains or reeds, and most of the southern half is covered, so that the water temperature will not rise suddenly, photosynthesis will be weakened, and bubbles will be reduced. At noon, goldfish can be seen hiding in the shade.

The above is some experience sharing about goldfish scalding, I hope it can help you.

If you look at the picture above, 80 percent of them are rotten or parasites.

The yellowing of the tail of a koi fish can be caused by several reasons:

1.Genetic factors: Some koi breeds may carry the gene for yellow pigment production in their genes. This can cause the tail or other parts of the body to turn yellow. This is a normal genetic variant and does not necessarily indicate a health problem.

2.Malnutrition: The koi's feed and diet may affect its color. If the feed lacks essential nutrients, such as carotene, the tail color of the koi may become dull or yellowish.

3.Environmental factors: Water quality and environmental conditions also have an impact on the color of koi fish. If the water quality is poor and contains too many harmful substances or pollutants, the color of the koi's tail will be affected and turn yellow.

4.Illness or infection: Certain diseases, parasites, or bacterial infections can also cause the koi's tail to turn yellow. This may be accompanied by other symptoms such as loss of appetite, abnormal behavior, etc.

If the koi has a yellowish tail and is accompanied by other abnormal symptoms or behaviors, it is recommended to consult a veterinarian or professional aquarium farmer for further diagnosis and**. They can provide more accurate recommendations and plans by checking the koi's health, environmental conditions, and diet.

After the tail of the <> koi carp rots, the water should be changed in time, the fish tank should be kept clean, and the germicidal lamp should be turned on to fully disinfect. It is possible to cut off the rotten part of the tail and apply it to the rotten part of the tail with iodophor once a day. Erythromycin ointment can also be applied, or a medicated bath with wild yellow powder, usually for 30 minutes.

Koi tail congestion may be caused by the tail colliding with a hard object, remove the hard object in the fish tank, and disinfect the congestion. It may be caused by infectious bacteria, take it out, soak it in potassium permanganate, soak it for one minute, and then maintain it normally. It may also be caused by a stress response, adjust the feeding environment and light, and wait for it to recover.

Hard object collision

The body of the koi is relatively fragile, and if it accidentally collides with a hard object, it will cause local congestion. Remove the koi fish and disinfect the congested area. In addition, the water should be changed again, and then the koi fish should be put into the fish tank for normal maintenance.

Infection with germs

If the koi has a wound on its body, germs will enter the koi's body through the wound, and the tail will become congested. At this time, the koi fish need to be fished out, soaked in the diluted potassium permanganate solution for one minute, and then put into the fish tank that has been changed for maintenance. It can also be put into an aqueous solution of salt and vitamin C for curing, and it can be cured in a week.

Stress response

If there is a sudden big change in the environment in which the koi are maintained, for example, from a quiet place to a noisy place, or from a dimly lit place to a place with strong light, the koi will have a congested tail. At this point, it is necessary to immediately adjust the environment to the previous environment, or reduce the stress response of the koi. It can also be alleviated by slowing down the speed of flowing water, reducing temperature changes, and reducing noise.

Rotten tail disease. That is, the fins of the fish and so on rot.

A disease that causes the fins to rot, and if you don't do it early, the fins will all rot and fall off, and even hurt the fish. Most of the diseases are caused by water pollution or stabbing by other fish, and the wound is infected with bacteria.

**Method: Add 5-100,000 units of penicillin to 10 liters of water.

Or soak the fish in 1% salt water alone, for 5-10 days in a row, and the cheapest is to soak the fish in salt water. Preferably sea salt, edible salt will also do. The proportion can also be as high as 2%-3%.

Beneficial and harmless. However, the rot is very bad, and it can't save the white spot disease. Actual parasites are everywhere and can multiply at every opportunity, harming fish.

In addition, the fish tank is disinfected after thorough cleaning. Disinfection can be done with potassium permanganate or Laisu water Fish farming water first, prepare in advance, the old fish tank can not be used, to be disinfected, or you will get sick. Soak the fish in the washbasin and other baths, then clean and disinfect the tank.

The tap water just came out and could not be used, so it had to be dried for a few days.

If there is a problem with the water, it is necessary to change the water, soak the koi with light salt water for 30 minutes to disinfect, and then raise it alone, sprinkle some yellow powder every day, generally more than 1 week will be good, when there is a condition to go head-to-head, adjust the water temperature to 26 degrees, so that the fish will not be easy to get sick, and the recovery will be faster.

Soak 1 percent salt for 15 minutes a day and give it a try.