At the beginning, several white spots appeared on the fish, and finally they were all white spots. Secondary infection is complicated by water mold and bacterial infection, and medical stone is ineffective in severe cases. The appropriate amount of methyl blue liquid medicine is 4~8cc per 10 gallon of water, and the container of bottomless sand and filtration system should be reduced to 1/2 ~ 1/4, or the sick fish can be cured by putting it in 1% salt water. It is difficult to kill adults, but it is easy to kill larvae, so it can be completely extinguished by maintaining effective chemicals in water for about 7 ~ 20 days. )

black spot

A long yellowish cyst can be seen on the head of the sick fish. The cysts are black when they mature, that is, the snipe larvae and the post-cyst larvae. They also invade fish's eyes, muscles, blood vessels, gills and internal organs. If opaque plaque is found in the lens of the eye, it may be infected. The disease is not contagious, but it will damage muscle tissue and make the eyes blind. In severe cases, it can be fatal. At present, there is no cure, only sterilization can be used.

Hydromycosis

The injured epidermis produces hairy filamentous hyphae, and the filaments visible to the naked eye are dead mold bodies, and live molds are parasitic on the skin and muscles. It is also effective to put a proper amount of methyl blue medicine or put sick fish in 1% salt water and penicillin aqueous solution. Children who are injured and fished should take preventive measures. )

Oral decay

Fish's mouth and cheeks are covered with white attachments, and fins, cheeks and mouth are the most susceptible to infection. This disease is very contagious. After a few days, all the fish in the fish box may be destroyed. You can use the same treatment as water mold disease, or apply cyanogen earlier. (If it can't be cured in a short time, it is easy to cause drug-resistant bacteria, so it is necessary to check the amount and amount of water when using drugs to treat it correctly. )

Tail rot and fin rot

The water quality is polluted, or bitten by other fish, the wound is infected, the fins begin to turn white, and rot and die after deterioration. Add a proper amount of methyl blue potion, penicillin, green F gold or feed with light salt water.

Parasitism of gill fluke

Shortness of breath, wide opening of gill cover, swelling and whitening of gill filaments, dislike of swimming, and sometimes infectivity of killing aquarium fish. Long-term or short-term medicinal bath with formalin solvent is easy to kill adults but difficult to kill eggs. After three days, it will hatch one after another. The effective components of Wanshui and Methyl Blue can be kept in water for 3~5 days to kill larvae.

Pine nut scale expansion

The fish is swollen and the scales are upright, which looks like a pine cone. The cause of this disease is unknown. At the initial stage of onset, 0. 1gr chloramphenicol can be added per 10 liter of water, or 30,000 units of penicillin solution can be added per 10 liter of water.

Oral filariasis

The skin is infected with a whole mass of gray mucus. When oral filariasis is parasitic in large quantities, blood spots with broken skin will appear on the body surface, the fins will not open, the plants or the bottom will be rubbed, and the weight will drop without eating, which often makes the sick fish lazy and sleepy. The same treatment as leukoplakia can be adopted, or 1 ml formalin is added to 2 liters of water for soaking for 15 minutes, or 1 g butyl flavin is added to 100 liters of water for soaking for about 2 days. Raising the water temperature to 30°C is helpful to eliminate oral filariasis.

Bubble disease

The granular bubbles on the surface of fish or fins will gradually become larger, just like bubbles. This disease will suffocate fish or cause bubble embolism to death. The cause of the disease is excessive oxygen or nitrogen in the water. If you just need to change the water at first, you can recover it in a short time. In severe cases, green F gold, sugar brown nitrate and other water baths can be used.

Puncture of forehead and head

There are one or several cavities near the forehead and orbit, and white filaments will appear when accompanied by mold infection. Fish tanks with old water quality are prone to this disease, which can be prevented by changing water frequently and cleaning the fish tank, and oral medicated bath can be effective at the same time. (Early treatment is easy, and later death is easy)

trichinosis

Poor appetite, motionless gills, bleeding spots on scales, floating to the surface. Add 15mg chloramphenicol per liter of water to implement water quality management.

Obstructed blood circulation

Insufficient blood leads to poor blood supply to dorsal fin and gluteal fin, leading to cell necrosis, serrated deformity but not continuous erosion, and the treatment of rotten tail disease can not achieve curative effect. Pay attention to water quality and parasites, add antibacterial agents to water, and strengthen nutrition at the same time, which can be recovered in a short time.

Striped worm disease

The abdomen is obviously swollen and firm, which is different from ascites or abdominal distension. Viscera are easily oppressed and lose their function, and adult fish are easily misdiagnosed as holding eggs. Oral intestinal parasite scavenger, early detection, easy treatment, when the worm is too large, it may explode into the abdomen, if it has invaded the internal organs, regeneration is useless.

Hairless

Ovarian degeneration, steatosis, ovarian cyst, ovarian fossilization, ascites, swim bladder disease, parasitic infection in the body, the fertility of male fish will be permanently damaged after a period of vitamin deficiency. Fish will suffer from steatosis if they eat too much fat for a long time, so when they enter the breeding season, they should reduce the feeding amount and fast for 3 ~ 5 days before spawning. In addition, they should use bright green, quinine and other drugs.

Infectious ascites disease

This disease has two symptoms, namely, typical ascites and ulcerative ascites. Its symptoms are exophthalmos, eyeball recession, anal protrusion and inflammation, white cheeks, severe fin rot and epidermal erythema. Abdominal cavity may accumulate pus, making the abdomen swollen. Ulcerative disease is red at the ulcer, surrounded by white rings, and exists under the black epidermis. In the place where the scales fall off, you can see that the abscess will contain antibiotics such as chloramphenicol, streptomycin, and ubicin.

Anchor worm

The crustacean parasite has an anchor on its head, which will pierce the fish, and its body length is about 1.2 cm. The fish looks like long hair from the outside. Squeeze out the anchor worms one by one with tweezers, or put the sick fish in seawater and saline solution with a specific gravity of 65,438+0.025, or add 50 mg of potassium permanganate to 65,438+00 liters of water, or use terbutamol (a pesticide with strong medicinal properties) to drive them away.

fish louse

Crustacean parasite, disc-shaped, about 5mm in diameter, swims in the water, parasitizes the fish, sucks the blood of the fish, and releases venom at the same time, which makes the fish's skin inflamed and red, and the fish becomes restless and unable to rest. The fins contract and fold, rubbing the sand and decorations in the jar, and little red dot with pink center can be seen by naked eyes. Squeeze out the fish lice one by one with tweezers, or put the sick fish in 1% salt water, and the fish lice can be eliminated in a day or two, or dissolve 1 00l in 1 g sodium permanganate and soak1hour.

Nematodes

This stubborn disease is caused by white to brown nematodes. The sick fish become sluggish, emaciated and stop eating. Sometimes it is difficult to deal with nematodes hanging outside the anus. Pesticides can be used, but they are also toxic to fish. It is best to remove, isolate or destroy the sick fish.

leech

Small coelenterate, about 1 cm, cylindrical, with six or seven tentacles around its mouth, will devour larvae. Take the fish out of the fish box and raise the water temperature to above 40 degrees Celsius to kill the leeches.

leech

No threat to adult fish, but it will eat fish eggs and larvae. Dip the fish box with high-concentration salt solution, stir and brush the bottom sand for ten minutes to drive away leeches.

spirochete

A small amount of leptospirosis may have little effect on fish, but serious infection makes sick fish emaciated, anal inflammation, eggs attached to the digestive tract, blocking the digestive tract. The disease can't be controlled, because there is no medicine that can affect the parasites in the intestine or their larvae. The measures to prevent infection are to stop feeding freshwater shrimp, water lice and insect larvae, and to remove the fish suffering from this disease.

Diptera

Gray-brown insect-like organisms are visible to the naked eye, which are common at the gill edge, causing gill inflammation, buckling and bleeding. Fish will rush out of the water with their heads held high, and dissolve 1 5g of salt in 1 liter of water for a short time, or dissolve1gram of butylflavin or adipam in 100 liter of water for a long-term medicinal bath.

decay

So far, there is no conclusion. According to the condition, it is speculated that the possible reasons are as follows: First, the water contains heavy metal salts, which stimulates the nerve and muscle contraction of fish; On the other hand, for the deformity caused by the lack of certain nutrients (such as calcium and vitamins), water can be changed many times. By improving water quality, strengthening feed management and feeding more bait rich in calcium and nutrition, the occurrence of the disease can be reduced.

winter injury

When the temperature is very low, the fish will be frostbitten, resulting in red blood silk on each fin, which affects the life function of the fish. In severe cases, it can cause death, so put it into heat preservation equipment and throw more fat-rich bait to increase the cold resistance of fish.

Mao Gan

Because of the sudden change of water temperature, nerve endings are stimulated, and when floating on the water surface, there may be confusion, movement disorder, organ dysfunction, and even loss of swimming ability. In severe cases, fish may die. When changing water, it should be noted that the temperature difference between the two water bodies should not be too large (fry should not exceed 2 degrees Celsius and fish should not exceed 5 degrees Celsius).

tumour

Malignant tumors can be divided into five categories: tumors of cartilage, bone, muscle, nerve and heart, and their skin tumors or epithelial cancers can be found. Benign tumors that grow on epidermis and scales can be formed by external stimuli and usually disappear after the stimuli are eliminated, while malignant tumors are rarely cured.

atrophy

The diseased fish is shriveled, with big head and small body, dark body color, back muscles as thin as blades and pale gills, showing severe anemia, and often swims slowly at the edge, mainly due to excessive stocking and insufficient food. You can master the appropriate stocking density of fish species, strengthen feed management, and let fish have enough bait.

Nuclear degeneration

Fish lose appetite, lose weight gradually, bend or arch back, sag abdomen, pale body color, exophthalmos, scale defect, gill deformation, epidermis inflammation, fin infection, internal organs stop working and grow nodules, sick fish move slowly and swim abnormally. Only a few antibiotics are effective, such as tetracycline.

coccidiosis

The sunken eyeball is obviously emaciated, the sick fish stands up, and yellow liquid is discharged from the anus. This situation is even more obvious when the sick fish's stomach is pressed down. Red worms and glassworms collected in ponds often make fish suffer from this disease, leading to intestinal inflammation. The disease is highly contagious and cannot be cured by drug treatment. We can start by protecting fish, avoid using the bait of red worms and glass worms, catch sick fish and disinfect fish tanks.

Fish carp inflammatory disease

At the beginning of the disease, the fish stops eating. If the disease continues to develop, a cyst filled with bubbles or viscous liquid will form at the back end of the abdominal cavity, which will make the fish swell, erect its head and enlarge the cyst. When the disease worsens, the swim bladder wall will collapse and infect the internal organs. This disease is highly contagious and is caused by a virus. Antibiotics can only slow down the deterioration of the disease, and it is best to kill the sick fish.

Neon fish disease

The fish is faded and emaciated, the abdomen is dry, the fluorescence band on the edge is broken, the muscles are red and shiny, the milky transparent film is slow, the movement is out of balance, and the swimming is abnormal. At present, there is no known cure. Therefore, when it is determined that there are fish suffering from this disease, it should be removed quickly and the aquarium should be disinfected and cleaned.