CATDOLL : CATDOLL: What diseases are ornamental fish prone to?

1. Gill rot

Gill rot is caused by myxococcus. When tropical fish are infected with gill rot, they move slowly, their body color fades and loses luster, their appetite is poor, their heads turn black, and their gills are covered with a layer of mucus and dirt. As the disease progresses, the outer gill filaments turn from bright red to white, and the gill filaments gradually rot and fall off. As the outer gill filaments rot, the inner gill filaments also begin to rot. The epidermis of the gill cover bone becomes congested, and the central bone necrotizes and falls off. In more serious cases, the entire gill cover begins to rot, eventually leading to death.

Prevention and treatment methods

Put the sick fish and healthy fish into another fish tank with 3 parts per million furazolidone solution at the same time. Stop feeding for 1-2 days, then feed a small amount of fresh bait and gradually resume normal feeding. This method is more effective. Generally, the sick fish can recover to normal in about a week. If there are fish with serious illness that cannot recover, they should be thrown away. Soak the original fish tank in 3 parts per million potassium permanganate solution for disinfection.

2. Red skin disease

Red skin disease is caused by Pseudomonas fluorescens. Tropical fish with red skin disease will have a significant decline in physical condition, loss of appetite, slow movement, and will swim alone on the water surface. The fish's body surface will bleed and become inflamed, and scales will fall off. The scales on the sides and abdomen of the fish will fall off most seriously. The fish's gills will become congested. The fins will rot, and in severe cases, the gill cover will rot and fall off, and the gill cover will become transparent, and the fish will die in about a week.

Prevention and treatment methods

Soaking fish and fish tanks in 20 parts per million potassium permanganate solution, or soaking fish and fish tanks in 3 parts per million bleach solution, can both disinfect and sterilize.

3. Scales erectus disease

Scale erection disease is caused by Pseudomonas aeruginosa. Scale erection disease is a highly contagious fish disease, but if tropical fish are strong and their skin is intact, they will not be infected with this disease. After tropical fish are infected with this disease, the skin of the entire fish body becomes rough, and the scales of the whole body stand up and spread outward. Fish infected with this disease will also have complications such as rotten gills and bleeding at the base of the fins. Sick fish have difficulty breathing, slow movements, and loss of appetite. If not treated in time, it will cause a large number of deaths.

4. White spot disease

Symptoms: The fish look dull, often wash in the water or scratch on the rocks, and the body is covered with white or light gray spots. The fish are cross-infected and twice infected. There are two common pathogens: one is similar to the multi-sperming Ichthyophthirius in freshwater, and the fish's body surface is white spots; the other is the oval flagellate, and the fish's body surface is light gray spots, which is not easy to cure.

Prevention and treatment methods:

① Raise the water temperature to 30℃. The parasite cysts will rupture due to the increased water temperature and automatically leave the fish body. This method is effective for fish infected with white spot disease for the first time, but it is not effective for fish infected for the second time. It must be treated with medicine at the same time.

② Soak the new bricks in urine for 24 hours. After drying, put them in the aquarium. After more than 10 hours, the small white spots on the fish's body will swell. After more than 10 hours, you can see the small white spots on the body surface falling off one after another. The effect is good.

③ Soak the sick fish in fresh water, which is a mixture of 9 parts fresh water and 1 part sea water. The immersion time is 0.5 seconds to 2 minutes. Pay attention to the degree of adaptation of the fish. If the fish is breathing nervously, move it to sea water immediately.

④Put 10 kg of seawater into a glass tank, add 0.05 g of copper sulfate, oxygenate, and soak the sick fish for 5-8 minutes. After 24 hours, the white spots on the body surface will fall off. This method is more effective for fish that are sick for the first time, but not for fish that are infected for the second time.

5. Fin rot and skin rot

Symptoms: The fins of the diseased fish are incomplete, the scales on the body are falling off, the skin is rotting and there are superficial ulcers. The cause of the disease may be that the marine ornamental fish are fighting for territory with each other, or they are not used to the new water, resulting in injuries to the fins and skin, leading to bacterial cross-infection, especially when new fish are placed in an aquarium with existing fish. This is more likely to happen.

Prevention and treatment methods:

① Put 2 cephalosporin tablets or 4-5 furazolidone tablets in 10 kg of sea water and soak the diseased fish for 10-15 minutes.

②Put 0.2g potassium permanganate in 10kg sea water and soak the diseased fish for 5-10 minutes.

6. Oral filariasis

Oral filarial parasites live on the skin and gills. There is a layer of milky white mucus on the gills and body surface; it is cloud-like, so it is also called white cloud disease. The gill filaments are light red, and the skin is inflamed and dull. The sick fish have difficulty breathing, swim slowly, gradually lose weight, and often die in large numbers. The suitable water temperature for the reproduction of oral filarial worms is 12-20℃, and it often occurs from February to May.

2 Common diseases

Copper sulfate, potassium permanganate, mercurous nitrate, and salt can be used for treatment.

7. Ichthyophthirius

Many small white spots can be seen on the body surface, fins and gills of the diseased fish; hence the name white spot disease. When a fish is densely parasitized by a large number of Ichthyophthirius punctatus, white spot-like vesicles form, which can be found all over the body in severe cases. In the later stage, the body surface is covered with a layer of white film, the mucus increases, and the body color becomes dull. The diseased fish become emaciated, float on the water surface or gather in a corner, and rarely move. Ichthyophthirius punctatus disease has obvious seasonality. The water temperature of 15-20℃ is most suitable for the reproduction of Ichthyophthirius punctatus. When the water temperature rises to 26-28℃ or drops to below 10℃, the development stops. When the water temperature is above 28℃, the larvae die in large numbers. It is prevalent in Beijing from March to May.

Treatment

A. Raise the water temperature to 28 degrees Celsius. After a few days, the Ichthyophthirius will burst and fall off. At this time, replace the water with new water and maintain the water temperature. The sick fish will basically recover.

B. Use 0.05%~0.07% concentration of mercurochrome solution and treat the sick fish in water for 5~15 minutes and continue for 2~3 days, the effect is good.

C. "Urine bricks": soak new bricks in urine for 24 hours, dry them and put them into the aquarium of the sick fish. It will be effective after a few days.

8.Ciliariasis

The oblique tube worm parasitizes the skin and gills of fish, causing local secretions to increase, gradually forming a white mist film, which can spread all over the body in severe cases. The sick fish becomes emaciated, their fins atrophy and cannot fully stretch, they have difficulty breathing, and their heads float.

It can be treated with potassium permanganate, table salt, etc.

9. Trichodinasis

Wheelworms mainly parasitize on fish gills, but can also parasitize on fish fins or heads. Sick fish are thin, have dull body color, have difficulty breathing, swim slowly, and often float on the water surface.

Treatment can be done with methylene blue, salt and formalin.

10. Bubble Disease

Bubbles appear on the fish's skin and fins. In severe cases, the place where the bubbles attach will ulcerate and lose its ornamental value. Due to the oversaturation of dissolved oxygen in the water, a large amount of oxygen forms micro bubbles. The bubbles attach to the fish and cause the disease. Bubbles can occur when there are too many phytoplankton in the water, when tap water is exposed to the sun, or when the aquarium is placed on the radiator on the south window. The cause should be eliminated to prevent the disease from occurring.

If the fish has bubble disease, the fish should be removed in time and placed in water without bubbles. The tiny bubbles on the fish can disappear. If it is not removed and treated in time, the tiny bubbles on the fish can connect into large bubbles and be difficult to treat.

11. Cold

The water temperature changes suddenly, and the fish are suddenly exposed to unbearable cold stimulation and become ill. The fish stays motionless at the bottom of the water, and in severe cases floats to the surface of the water. The skin and fins lose their original luster and become dull in color. The fins become sticky and cannot stretch. Tropical fish are susceptible to this disease, and prevention must be taken.

12. Eye diseases

Fish's eyeballs are protruding and bleeding; you can use 1% salt water to soak the sick fish. Fish's lens is cloudy, blind or the eyeball falls off, which is caused by parasites and is difficult to treat.

Be careful not to bring fish worms, aquatic plants, snails, etc. from freshwater fish ponds into the fish tank.

13. Accidental poisoning

Most of them are caused by pesticide poisoning. For example, in order to beautify the environment, fish tanks, aquariums and flower pots are placed together. When spraying pesticides on the flower pots to treat insects, the fish are not considered, the fish tanks are not moved, and the cover is not covered. The pesticides are sprayed into the fish tank, causing the fish to be poisoned and die. When cleaning the filter cotton, rinse it with clean water, and never soak it with detergent or soap.

14. Bacterial spoilage

The fish's body surface is partially or mostly inflamed and congested; scales fall off; the fin base is congested, the fin tip is rotten, and the tissue between the fin rays is destroyed; erythema often appears on the fin cover and upper and lower jaws, and the fin cover epidermis sometimes rots, exposing the fin cover bone. This disease is prevalent in late spring and early summer, and the sick fish swim slowly; they often stay alone on the water surface and die soon.

Furazolidone, bleaching powder, antibiotics, etc. can be used for treatment.

15. Cotton mouth disease is also known as rotten mouth disease. The fish's mouth is covered with white cotton-like hyphae like velvet, which is also called white mouth disease. Fish that often lick the tank wall with their mouths to eat algae are prone to this disease, which is easily contagious. Sick fish have difficulty eating, swim slowly and weakly, and eventually die.

Timely treatment is required. Use penicillin or chlortetracycline solution, or 10ppm oxytetracycline solution to bathe the sick fish. Use 0.1% formaldehyde solution to disinfect the aquarium, fishing net, tools, etc.

16. Saprolegniasis is also known as white hair disease. Saprolegniasis invades the fish through wounds, begins to parasitize the epidermis, gradually penetrates into the muscles, absorbs nutrients from the fish, reproduces in large quantities, and produces gray or bluish-white hyphae (cotton-like appearance visible to the naked eye). The wound at the parasitic site becomes inflamed, congested, necrotic, and ulcerated; sick fish often use the tank wall, gravel or aquatic plants to rub the affected area, and finally die of exhaustion. This disease can occur all year round, and is most likely to spread in early spring and late autumn. Young fish that are bruised or frostbitten are susceptible to the disease; unfertilized fish eggs and those with poor embryonic vitality are also susceptible to parasitism.

Treatment methods:

A. Sprinkle a mixture of 250g salt and 250g baking soda in a 100cm x 55cm x 45cm fish tank for several times. The effect is remarkable.

B. Dissolve 0.3 g of malachite green or methylene blue in 100 kg of water and soak the fish body for 10 to 20 minutes. After a few days, you can see the hyphae falling off.

C. Soak in 2%-3% saline once a day for 5-10 minutes each time.

D. Mix 2 parts per million (2ppm) potassium permanganate with 1% salt water and soak the diseased fish for 20-30 minutes.

E. Raise the water temperature to inhibit the growth of water mold. A 15-watt ultraviolet lamp can be used for several hours a day to effectively inhibit and eliminate water mold.

17. This disease is also called needle worm disease or anchor worm disease. The head of the worm drills into the skin and muscles of the fish, and the worm body hangs on the fish body like a short needle. When the worm body is pulled out, the anchor-like head can be seen. The affected area becomes inflamed and swollen, with erythema and necrosis, making it easy for bacteria to invade. The sick fish is restless, has a reduced appetite, and becomes emaciated. Anchor fleas can reproduce at water temperatures of 15-33℃, have a long epidemic period, and are prone to parasitizing larger fish. Trichlorfon and potassium permanganate can be used for treatment.

1. Arowana

Experienced fish breeders believe that the most common diseases of arowana are blindness and eye loss. Although eye loss is not a disease, it has a great impact on the appearance of arowana, so it can be considered a disease and occurs from time to time. Another problem is enteritis in arowana, especially for arowana over two years old. If we do not pay attention to proper feeding, the probability of arowana dying from enteritis is still very high.

2. Lohan fish

Blindness, head holes, and enteritis are the three major diseases of arowana, plus fighting injuries, which are also problems that arowana often have to deal with. Blindness and fighting injuries are relatively easy to treat, but enteritis and head holes require some effort. The treatment effect will be quick in the early stages, but it will be difficult in the late stages.

3. Parrot Fish

Parrot fish are relatively stronger than arowana, but they cannot escape the three major diseases of arowana. The probability of blindness and enteritis in parrot fish is not very high but they can happen. Head holes and white spots occur frequently. At the same time, the dull body color of parrot fish is also a headache for fish lovers.

4. Swallowfish and Discus

White spot disease, Saprolegniasis, bacterial enteritis, and gill parasites are all diseases that they seem to be very fond of. The discus also has a problem of black body at any time. These two types of fish may have more diseases than all ornamental fish. Internal parasites, external parasites, and comprehensive parasites are probably all derived from the discus, so we must be more careful when raising them.

5. Map fish

Although the map fish looks tough, it is possible for it to develop white spot disease and enteritis. I have encountered this when I ran a fish shop before. Therefore, the tougher the fish, the more we should be careful about them.

6. Tetra

It is the only fish that will be finished immediately if the chlorine and ammonia nitrogen in the water exceed the standard, so when raising red light fish we must pay attention to the maintenance of water quality.

7. Red Arrowfish

Saprolegnia, white spot, and cottonmouth disease are the three most common diseases of red arrowfish. Other diseases are not common in red arrowfish.

8. Cleaner fish

Don't be fooled by their thick skin and flesh. In fact, their weak points are in the abdomen. Many scavenger fish die from abdominal ulcers or abdominal water mold, but few people pay attention to it.

9. Betta

If the water temperature is lower than 22 degrees, water mold will appear immediately. Similar fish include Blue Mandrake and Lilyfish. At the same time, since Betta fish are often kept in small containers, it is very likely that the water quality will be too acidic and their fins will rot.

10. Lucky Fish

When the water temperature is lower than 22 degrees, water mold will occur, and various surface rot diseases caused by fighting injuries will continue. However, the injuries of money fish are very easy to treat and can be cured by a dose of anti-inflammatory medicine.

11. Guppy

Needle tail is the most serious disease of guppies, followed by frequent outbreaks of diseases such as water mold, white spots, ulcers, and gill parasites, mainly due to cross infection and water quality and temperature issues.

12. Koi and Goldfish

Koi are relatively less susceptible to diseases if they are well-fed, but many new fish lovers are constantly faced with challenges such as koi white spot disease, saprolegniasis, and various diseases caused by water quality incompatibility.

Except for holes in the head and needles in the tail, goldfish basically suffer from all the above diseases. There is no major disease to speak of. There are also diseases such as tail scald, powdery skin, and tapeworms in the body. Even real experts dare not ensure that goldfish will be safe all year round. There are both major and minor illnesses all the time, so new fish lovers should be relatively cautious when raising goldfish.

However, goldfish, as our national quintessence of ornamental fish, must be promoted by someone. With the continuous improvement of goldfish varieties and quality, now mid- to high-end goldfish are not particularly difficult to raise. We must look at goldfish dialectically and with deep affection.

When raising ornamental fish, the changes in water quality and water temperature often cause the fish to develop some diseases. For experienced breeders, it is easy to determine the cause of the disease and prescribe the right medicine. But for beginners in fish breeding, they will feel confused and at a loss.

In fact, the common diseases of ornamental fish kept in fish tanks at home are nothing more than a few, such as water mold, white spots, fin rot, gill inflammation, etc.

The simplest solution is to change about 1/3 of the water once a week, adjust the water temperature to a suitable level using a heating rod, ensure the normal operation of the filtration circulation system, and make sure the density of fish in the fish tank is not too high.

2. If you find fish showing symptoms of illness, such as floating head, loss of appetite, unwillingness to swim, bloodshot or foggy fins, etc., immediately add about 1% crude salt to the fish tank. After 2-3 days, change half of the water and add an appropriate amount of crude salt to keep the salt water concentration at about 1%.

Generally, the fish can return to normal within a week. In fact, if you can stick to the first point above, quarantine the new fish for a week before putting them into the fish tank, and do not feed them raw bait, but dry feed, the fish will not easily get sick.

Bacterial diseases Bacterial diseases are the most common in fish diseases, including gill rot, bacterial enteritis, white skin disease, vertical scale disease, hemorrhagic putrefaction, printing disease, furunculosis, white head and white mouth disease, etc. They are all high-incidence ornamental fish diseases, and they are generally more dangerous when they occur.

Cheek rot

Causes

Pathogens

Myxococcus piscicola

symptom

The fish's gills are full of mucus, and the gill filaments and the inner epidermis of the gill cover bone are bleeding. The gill filaments will quickly turn from red to white, gradually rot, and finally the entire gill will rot, and the fish will lose its breathing function and die.

Tropical fish are colorful and have great ornamental value. They are loved by aquarium enthusiasts. They are extremely sensitive to water temperature and water quality. If you are not careful, the fish will easily get sick. The editor will tell you the five common causes of tropical fish diseases. 1. Fish health:

Healthy tropical fish have strong resistance and are not prone to disease even if they live in poor water quality. If the fish are unhealthy, they are more likely to get sick when they encounter pathogens such as pathogens and bacteria and poor water quality.