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White spot disease is a highly contagious ectoparasitic bore.
1) Pathogen: polyphyllum melon worm (parasite). Mode of infection:
Daphnia, diseased fish, the tool of contamination is the No. 1 tropical fish that is more susceptible to white spot disease than goldfish, and the high and low water temperature is the cause of this disease, and it is also the reason why beginners often fail. When tropical fish farming first emerged in Europe, it was completely wiped out by the disease. Timely detection and early isolation, strengthening disinfection, and maintaining a constant temperature are effective ways to prevent this disease.
White spot disease is divided into three stages: early, middle and late, the course of the disease is 5 7 days, and each stage is 2 3 days, which often causes a large number of fish to die quickly, and the mortality rate can reach 60 70.
2) Symptoms: In the early stage, there are individual small white spots on each fin and body, and there is appetite, and there is not much change in spirit. In the middle stage, the fins and body are full of white spots, no appetite, no activity, itching everywhere, and the color becomes darker.
In the late stage, white spots are all over the body, and the fish floats on the surface of the water or sinks to the bottom of the tank. The fish has weak breath, sways from side to side, increases the mucous membranes on the body surface, has difficulty breathing, and suffocates to death.
3)**: This disease should be comprehensive**, only the effect of medication is not great, and it is very important to strengthen feeding management. First of all, it is better to stop eating for 4 to 5 days to reduce pollution, keep the water temperature constant, and the temperature rise is 2 3 times higher than the original water temperature.
In the early stage, 0 5 1 salt can be put in, and a certain effect can be obtained.
Reference prescription 2: In the early and middle stages, put red mercury into water and turn it into light red, which has a good effect of eliminating pathogens, but it cannot be used repeatedly, because mercury is toxic, and fish are not easy to excrete from the body.
Reference prescription 3: In the middle and late stages, the specific drug is mercurous nitrate, but fish are very sensitive to this drug and can easily cause death, so it is generally not used. 90 45 60 (cm) box can be put in a piece the size of a mung bean grain, and this medicine cannot be used repeatedly.
Beijing Zoo has a high rate of this disease, and the loss is generally not large.
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Raise the temperature to 30 degrees under some medicine for white spots.
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The water temperature rises to 30 degrees, and then heavy salt is added, and it is okay to drink more. Pump once every two days, not too much, start at the bottom. It's about the same in a week.
After healing, pay attention to the constant temperature, if it is not a very valuable fish, then change all the water, wash the fish tank thoroughly, and use some potassium permanganate or something. Then change to new water and start from scratch.
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Raise the temperature by 31, lower 2 thousandths of salt, change the water every day to replenish the salt
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If an ornamental fish has white spots on its body, it is an indication that it is suffering from white spot disease. This is a common disease, which is caused by the invasion of small melon worms into the fish body, which is not only easily contagious, but also extremely harmful, so it needs to be timely**. This disease is more common in late autumn and early spring, when the temperature is relatively low, and the melon worm is easier to grow and reproduce, so in order to prevent the disease, we must pay attention to controlling the temperature and keeping the temperature above 25.
1. Stop feeding: After finding that the fish suffer from white spot disease, you need to stop feeding as soon as possible, at this time, the appetite of the fish itself is not high, and it will not eat after feeding, and it will pollute the water quality.
2. The old three: In the early stage of white spot disease, the old three samples are generally used, that is, changing water, heating and adding salt. The water change is different from usual, and it is usually changed every other day so that the water quality can be improved as soon as possible.
The temperature should not rise much every day, at most 2 a day, until it rises above 25, and it is best to control it at about 28. You can't add more salt, and the salinity is about 5 parts per thousand.
3. Drug immersion: If the situation of white spot disease is more serious and cannot be cured by the old three, it is necessary to soak the fish body with drugs at this time. The most commonly used is white spot net, this medicine has a very good effect, and white spots will fall off in a few minutes.
However, it is also necessary to control the dosage to avoid drug damage.
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If you have white spots on your fish, the first thing you need to do is change the water. The purpose of water change is to improve the water environment and reduce the content of harmful substances in the water, so as to lay the foundation for the fish. Usually you need to change it every other day, a quarter or a fifth of each time, and changing too much can also be detrimental to the health of the fish.
The reason why white spots grow is because the fish have white spot disease, which is caused by a parasite called melon worm. This parasite is sensitive to temperature, usually when the water temperature rises to 25, it will stop growing, and when it reaches 28, it will gradually die, so it can play a role in heating up.
In order to prevent the fish from getting sick and getting sick due to other germs during the disease, it is necessary to put salt appropriately to increase the osmotic pressure of the water body and inhibit the invasion of bacteria. It should be noted that the salt should not be too much, otherwise it will cause the water in the fish to seep out, and in severe cases, it will even die of dehydration, usually the concentration can not exceed 5 parts per thousand.
In view of the serious situation of long white spots, it is too late to rely on the method of heating up, and it must be soaked with drugs to make it as soon as possible. The drugs usually used are malachite green or white spot net, both of which have certain toxicity, so care should be taken when storing and using them.
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