Diseases and control measures of arowana
Inverted abdomen and sunken eyes
Symptoms The abdomen is facing up and the whole body is bent into a C-shape.
The problem of gastrointestinal upset of arowana is one of the more difficult diseases to deal with. The causes include shipping, fright, continuous high temperature, deterioration of water quality, and convulsions, gastrointestinal discomfort and even sudden death caused by unknown reasons. Hanging upside down, hanging vertically, and turning over the belly are because the fish's eyes are punctured or squeezed by infected swollen viscera or the viscera decomposes and gasifies in the body.
Control arowana with floating splint. The upper part is a piece of white foam with appropriate width and size, and the splints on both sides are acrylic plates, which are tied with rubber bands to adjust the size of the internal space and gently feed the fish from the back. The internal space should be fixed, but not too narrow to hold the fish. Fish eyes are used to expose the splint to ensure breathing. After several days of restoration and floating treatment, the recovered fish can swim out of the splint by themselves. The survival rate of arowana will not exceed 5%. But if you don't straighten out the upset arowana, even this 5% chance will be lost.
enteritis
Improper feeding is the main cause of arowana enteritis, the most common cause of enteritis and the best preventive method. But there are two specific situations:
1, food-induced enteritis
Stripe-like white stool symptoms, accompanied by blindfolding, exophthalmos, head hole and other diseases, can also cause anal swelling, rectocele, ascites and other arowana diseases in the later stage.
Should the prevention and treatment of this enteritis be followed? Four methods? Feed arowana and treat it with Dabai tablets after getting sick. When raising arowana, the owner should pay attention to the handling of food. The food of arowana is mostly small fish and shrimp, so the owner should disinfect the fish and shrimp in advance, feed the fish and shrimp with clear water for a few days, or use potassium permanganate medicinal bath bait to avoid the enteritis of arowana caused by the internal transmission of live bait. Fish scales, shrimp swords, etc. should also be disposed of when feeding. Avoid scratching arowana in advance.
2, enteritis caused by indigestion
Symptoms Arowana is anorexic or refuses to eat, and its body color is dark or black. Arowana is mostly isolated, with walls and loose or purulent white feces.
Furazolidone can be used to prevent and treat diseases after treatment. If there is no 100 liter of water, put 4-6 tablets and take a medicated bath for 3-6 days. After arowana asks for food or normal feces, it can stop taking medicine and change water.
Cucumber disease
Symptoms A part or most of the body is covered with white spots, which affects the fins and reduces the appetite of arowana. It is often seen that arowana rubs the body.
The cause is caused by parasitic protozoa.
Prevention and control raise the temperature to 30 or even 34 degrees Celsius and add 3% salt. If it doesn't work, it will be treated separately in the medicine jar. Sprinkle 0. 1 ~ 0.2 ppm mercurous nitrate on the whole pool; Spray the whole pool with 500ppm copper sulfate and 500ppm magnesium sulfate.
Eye drops
The reason is caused by feeding the bottom food for a long time.
Prevention and control Cover the fish tank with opaque black paper, add a white lamp to the upper part of the fish tank, feed the top food or put an object on the top of the fish tank to attract the attention of arowana, and remove the black paper after 3 months.
Gill inversion
It causes unclean water quality, insufficient space, insufficient dissolved oxygen and sudden change of water temperature.
At the beginning of symptoms, you will see irregular movement of fish gills, shortness of breath, the soft membrane on gills covering outward instead of inward, and you can also see the red color of fish gills.
Prevent and control the increase of dissolved oxygen, and let arowana rest in dark conditions. If arowana is not interested in food, change 20%-30% water every day, change the water quality once every six days, increase the salt, and reduce the risk of parasite invasion.
Drop your eyes.
There is only one way to correct your eyes? Surgery. There are many reasons for eye drops, and netizens think that one of the most important reasons is the small water body and insufficient exercise. Even if the operation is corrected, the eyes will droop again if you continue to raise them in the original environment. Besides, it's not good to turn on the night light on the top. When the arowana is resting, its eyes will avoid the light above and it will droop. But the ultimate reason is fat accumulation and insufficient eye muscle activity.
fat
The reason is overeating and lack of exercise.
To prevent and treat this symptom, arowana will not die, but it will shorten its life span and cause dystocia death.
prevent
1, choose 1-2 days every week to stop eating.
2. Put in the water pump motor or choose a few arowana to play with fat fish to increase the amount of exercise.
The water quality of dragon beard knot is not good, which leads to poor appetite and lack of vitality. Therefore, in this case, water can be changed to improve water quality and increase food consumption.
spinal column curvature
Symptoms Arowana's spine bends into an S-shape.
The reason may be improper medication, poor water quality, insufficient transportation or malnutrition of young fish.
Prevention and treatment are almost impossible. The key lies in prevention: keep the water clean, pay attention to balanced and sufficient nutrition, try to prevent other fish diseases, try not to use drugs, increase the pump motor, increase the exercise of arowana and make the fish tank as big as possible.
Cat head lice disease
Diseases caused by arthropods, cats, head lice, parasitic fish sucking fish blood.
When the control quantity is small, the parasite can be directly removed by hand and coated with antibiotic ointment. If the fish is young or there are too many parasites, you can soak the sick fish in 80000% potassium permanganate solution 1 hour, and the water temperature is 25-30 degrees Celsius, * * * three times a day. Hai Bao fu ke chong ling medicine can also be used.
It is common for people to eat whole grains, so are minor illnesses and disasters, and so is arowana, which occasionally gets sick. The common diseases of arowana are mainly caused by water quality deterioration, bacterial infection, parasites, environmental mutation and feeding. Only by finding out the causes of common diseases of arowana can we come up with corresponding measures. The most important thing is to keep the master's love at all times. If you decide to keep arowana, keep it well.
How to raise arowana
New fish in the fish tank
1. Newly bought arowana, the air pump in the fish tank must run for at least 24 hours to completely eradicate chlorine in the water. If the biofilter is used all the time, it is best to make the water reach PH 6-7 and the water temperature is 25 degrees Celsius.
2. Add a small amount of salt (about 1 or 2 teaspoons in every 5 gallons or 20 liters of water) to the fish tank to reduce the risk of fungal attack, make the fish healthy and enhance their appetite.
3. If possible, it is best to take the water from the original tank of the new fish back to your aquarium (if there is no problem with the water in the original tank), and it is best to take it back to 1/3, which is conducive to the adverse reaction of the new fish to environmental mutation. It is recommended to raise arowana from an early age.
4. Because arowana is a large fish, the fish tank is at least 1.5m long, 0.5m wide and 0.7m high. The fish tank must be covered. Arowana belongs to the upstream fish and likes to jump, so as to avoid choking when no one jumps out of the tank.
It is suggested that arowana is strong, grows rapidly and eats a lot. Fierce temperament, can swallow small fish, not mixed with other fish.
Daily feeding
1. change water: change water at least 20%-30% every week. Don't let the temperature and pH suddenly change, which will lead to sudden death of arowana. Be careful when changing water, so as not to scare arowana. Moreover, keeping arowana must avoid completely changing to new water, otherwise it will cause harm to the fish. If you see the fins and scales of arowana fall off, it is caused by too much water change. You can stop changing the water, and they will recover naturally. However, the amount of water exchanged should not be too small. Too little will make the fins opaque and the eyeballs turbid, leading to gills turning over.
2, lighting: Arowana needs a lot of light, and the best light is 4 hours a day. Other arowana also had better reach 8 hours of light. Some people who love fish, such as those who keep arowana, like to give arowana red light to achieve better results. The best light for arowana is daylight. Long-term use of light will darken the back of arowana.
3. Filtering: The young arowana is too big to be put in the aquatic box. As big as a fish tank, the problem of filtration is more prominent. The filtration systems suitable for arowana culture mainly include upper filter, outer filter, upper+sand pumping filter and overflow filter. However, it should be noted that when arranging the arowana box, you should consider arranging a water pump (surf pump), which has great benefits: first, it can form a strong water flow; Secondly, it can increase dissolved oxygen in water; Third, more importantly, arowana can keep a certain amount of exercise and keep the graceful figure of the fish; Fourth, it is also very important to avoid arowana turning over its cheeks, so that it can be trimmed and restored when it happens.
Feed management
1, Arowana will bump into a certain angle in the tank if it eats too hard, resulting in injury. It is best to feed in the middle of the fish tank when feeding. Arowana is a carnivore, and its recipes are mostly frogs, loaches, crickets, goldfish, grasshoppers and shrimps.
2. Feeding has color problems, such as red dragons. Feeding red arrow or shrimp will play a certain role in coloring the red dragon, because both red arrow and shrimp contain red pigment.
3. Young fish below12 cm just started eating raw bait. At this time, you can feed white bread worms and freshly shelled shrimps (the head and tail must be removed, and it is best to peel them into shrimp balls to avoid hard shells hurting the stomach) and blood worms. Eat less and eat more meals, four times a day.
4. Arowana around 1.5 cm can be fed with normal breadworms and shrimps (shrimps should be removed from the shrimp sword), or with small fish around1.5 cm. At this time, arowana grows rapidly and eats an amazing amount. The feeding times and the feeding amount can be appropriately increased.
Arowana above 5.20 cm can be fed with larger bait such as fish, shrimp, loach and meat. You can also feed live baits such as various insects, which are arowana's favorite food, but be careful not to pollute these baits.
In addition, the internal organs, especially the liver, are not suitable for feeding arowana, and too much fat will cause arowana disease. The goldfish in the live bait is not a good bait. It is best to use beef with less fat as artificial bait, and of course you can also buy special bait for arowana.
How big can arowana grow?
The growth rate of silver dragon is relatively fast, and it can grow 30 cm high in a year or so. The maximum growth rate of yinlong in the wild is 1.2 ~ 1.3 m, and the longest growth rate in artificial culture is 90 cm, rarely exceeding one meter. In natural environment, the life span of arowana can reach 15-20 years. If you keep it at home, you need a big enough fish tank. Generally speaking, the life span of arowana can reach 6-7 years.
Market price of arowana
The price of arowana mainly depends on its size, which determines the price, ranging from 20cm to 50-70 yuan, 35cm to 90- 100 yuan, 50cm to 150-250 yuan, and 60cm to 300-500 yuan. In some remote areas, because arowana is scarce, the price will be slightly more expensive than that in developed areas.
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