Goldfish into the fall and winter, due to the large temperature difference between day and night, it is easy to have white spots, this is not a very serious disease, but if the care is not good and the treatment method is not appropriate, it is very easy to cause the death of the goldfish, when the seriousness of the impact of the whole aquarium goldfish, some fish friends put forward the white spots in the cured will also recur, the following will be the cause of the white spots disease and the treatment method to do a detailed introduction:

White spot disease: this disease is caused by protozoa, the pathogen is called white spot worm, it will go deep into the skin cells, asexual reproduction, the formation of white dots of cysts. Goldfish with this disease are covered with white dots, and each white dot cyst contains many small white dot worms. The white dot worms suck the nutrients from the fish's tissues and grow up and increase in number, and then break out of the cysts and swim into the water, and then return to the fish's body to infest the skin and form more small white dots. In the early stage of the disease, the sick fish will rub its body against hard objects in the hope of removing the annoying pathogens from its body. If the disease is not treated immediately, the fish's body will be severely damaged and it will die quickly. When the white spot worms invade the fish, medication is not effective, only when the small white spot worms multiply in the fish and new individuals swim into the water, the medication can kill them. Treatment method for the use of 0.01 percent concentration of malachite green solution, the sick fish immersed for many days, until the small white spots completely disappeared, malachite green solution is very strong toxicity, can not be used in excess, otherwise the goldfish will be poisoned to death, or the use of commercially available Sera treatment of white spots, the United States of America to eliminate the white spots, the Queen's Whale treatment of white spots, the treatment of the external parasitic agents, AZ00 treatment.

Some fish lovers ask, after applying medicine to the whole tank, the white spots disappear, and then appear again in a week or two. Always this cycle why? This is also a goldfish people can often encounter problems, general medicine can directly kill adult worms, but the problem is that the medicine can only kill adult worms, and its larvae, able to hide in the epidermis of the body of the fish, the medicine can not be in-depth, so it will be repeated. Some books say that if you raise the water temperature to 30 degrees, you can get rid of the white spots, but this temperature is too high for goldfish, and even if you cure the white spots, it may cause other problems. It is recommended that the medication at the same time, more daylight, pay attention to the same water temperature when changing water, white spots disappeared after insisting on the use of some daily water purification agent, white spots will be completely cured.