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Why do goldfish have dark spots?
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If there is a problem with water quality, I will tell you how to raise goldfish.
The experience I have summarized over the years is relatively easy to understand. Raising goldfish is first of all from the selection of goldfish, goldfish are divided into four categories: golden carp species, literary species, dragon species, and egg species. Try not to polyculture to avoid breeding fish with poor ornamental properties.
Goldfish also belong to cold-water fish, the so-called cold-water fish does not mean that it can only be raised in cold water, but that its water temperature adaptation surface is relatively large, it can survive in any water temperature of 0-38 degrees Celsius, and it will not think that the tropical fish adaptation surface is so small. Goldfish prefer hard water, and the time of being trapped in the water does not need to be too long, about three days is enough. But be sure to keep the goldfish water clear.
Change the water without changing about 5 1 on the day, not particularly turbid do not need to change all, pay attention to the temperature of the new water and the old water is not more than two degrees Celsius, so as not to get sick fish. The density of goldfish should not be too large (a pair of round fish tanks with a diameter of 20 cm is appropriate, and so on), do not feed too much, it is advisable to feed once every two days, feed to about eight minutes, feed feed or quick-frozen fish food, although the fish like to eat live food, it contains a large number of parasites, and the fish are susceptible to diseases. Do not raise goldfish must add salt (do not add edible salt, edible salt contains iodine, iodine is equal to chronic poison for fish) one percent of the proportion.
Try not to put the goldfish on the windowsill Goldfish is a medium-light fish, and a little sunlight is fine. Try not to let the water temperature get too high, the higher the water temperature, the more oxygen the fish will consume. The above are the general attributes of goldfish, if you choose what type of goldfish to raise, then give a detailed introduction.
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The black spots on the body of the goldfish are due to the black spot disease, and the rescue method is as follows:
1. Splash 250 grams of salt and 250 grams of baking soda mixture on a 100cmx55cmx45cm fish tank, insist on several times, and the effect is remarkable.
2. Dissolve malachite green grams or methylene blue in 100 kg of water, soak the fish body for 10 20 minutes, and the mycelium can be seen to fall off after a few days.
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Here's why:1Fish will appear dark spots when frightened, and they will disappear after a while.
2.The water quality is not good or the water quality is not adaptable, the pH and hardness of the water are too high because the water has not been changed for a long time, and the best pH value in the goldfish discoloration stage is in, and too alkaline or too acidic will make the goldfish darker. When the water quality is not good, the water should be changed, and the water should be changed immediately if the water quality is not good, and the water quality should be adjusted.
3.Rotariasis (melanosis). The symptoms of this disease are that the sick fish are emaciated, dull in color, and the lesions in the gills cause breathing difficulties and swim on the surface of the water.
Caused by the parasite of the wheel worm in the ** or gill region, the water temperature is above 25 May and August is the epidemic period. If it is black body disease, it is recommended to use 1 salt water for feeding; Twenty parts per million potassium permanganate solution in a medicated bath for 10-20 minutes.
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Black spot disease on goldfish cannot be cured by itself, because black spot is caused by mold invasion or bacterial infection after fish scale damage, and it will not heal itself without **.
Goldfish can be transmitted to other fish, so keepers need to isolate the diseased fish immediately when they find that they have black spot disease.
If the condition of goldfish black spot disease is not severe, some coarse salt can be added to the water to sterilize**. If the condition of black spot is more severe, it is necessary to use a malachite green medicated bath**.
1. Trauma: Black spots on goldfish may be caused by traumatic infection, such as in the process of fishing or transportation, fish scales are damaged, resulting in bacteria and mold invading their body surface, and the shed will suffer from black spot disease.
2. Frightened: After being frightened, black spots will also appear on the body of goldfish. In addition, black spots will also appear when goldfish enter a new environment or the environment changes suddenly and greatly.
However, such chain dark spots are not pathological and can be cured as long as they recover from the frightened emotions.
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