How to raise koi fish? Koi farming techniques

Koi fish are relatively easy to raise, in spring, summer and autumn, pay attention to the occurrence of bacterial diseases, and pay attention to the occurrence of fish maw disease and fried scale disease in winter. Fish farming is about prevention, don't wait and get sick before going **. Early detection of abnormalities in advance**.

Koi breeding environment:

From the perspective of ornamentation and cultivation, water is the soul of the landscape. In addition to the hardness, other water quality indicators of landscape water and aquaculture water belong to the scope of surface water standards (a total of 24 water quality indicators), which can be used to breed aquatic animals and aquatic plants to adjust humidity and beautify the environment.

Three requirements:1The water is clear. 2.Tasteless. 3.Aquatic animals and plants can grow normally.

Precautions for the reproduction of koi fish:

Master the breeding season, master the spawning time of koi, and master the time to play oxytocin.

After about ten minutes of oxytocin (depending on the performance of the fish), prepare for artificial spawning and reproduction. The fertilization rate of artificial reproduction is higher than that of natural spawn reproduction.

Fertilized eggs should be sterilized, and green water and old water should not be used for hatching water. Hatching water, hatching tanks and pools should also be sterilized and disinfected. After the fertilized eggs are placed in the hatching tank and pool, methylene blue should be put to prevent water mold.

Timing the nest can cause the seedlings to die too soon and bacteria to grow in the water too late.

The fry do not need to be fed for two days after hatching, and will absorb the nutrients in the yolk.

Precautions for koi farming:

1. Koi carp, like goldfish, do not have strict requirements for water temperature and water quality, and the turbidity range of life is 2 30 degrees Celsius. Although the adaptability to the environment is strong, but there is a weakness that can not resist the rapid change of water temperature, such as long-term artificial breeding, the water turbidity rises and falls 2 3 degrees Celsius when it can be tolerated, when the temperature drops or rises more than 2 3 degrees Celsius, the fish is easy to get sick, the temperature rise and fall increases to 7 8 degrees Celsius, the fish crawls at the bottom of the water and does not eat or support, if the temperature mutation amplitude is medium and large, it will even die immediately, the most suitable water turbidity for life is 20 25 degrees Celsius, in the water at this temperature, the koi swim actively, have a strong appetite, and have a strong physique, Bright colors. It is ideal to control the water temperature that is most suitable for the growth of koi fish, so that the fish can have a comfortable environment and grow quickly.

2. Pay attention to the state of the fish every day, if there is a fish that does not eat or lies in a corner, it is necessary to consider whether the fish is sick.

3. When fishing, you should consider the size of your water body and the efficiency of the filtration system, and the density of fish should not be too large.

4. When transferring fish, it is best to use amateur koi fish nets, and generally use fairy nets. This is not easy to cause damage to the fish.

5. When you see a fish rubbing your body, it is generally a parasite for the fish, and you can consider killing insects.

6. If you see that the water has been relatively turbid, you should consider whether there is a problem with the filtration system.

7. When the fish is sick, don't rush to isolate. If isolation is required, there should be an isolation tank with a complete filtration system.

8. Some commonly used medicines should be prepared, such as coarse salt, Japanese yellow powder, potassium permanganate, antibiotics, insecticides, etc.

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Koi farming techniques

1. Maintain water quality.

Koi do not have high requirements for water quality, the 6 koi I raise are more than 20 centimeters long, and there is a lot of excrement every day, so I bought a filter of dozens of pieces (24 hours a day) to filter the water while delivering oxygen. Generally, the daily consumption of electricity is less than 1 kWh. The frequency of water changes is once a week, one-third to one-half of a water change at a time.

Do not change the water too much at one time, which will cause the instability of the ecosystem in the fish tank, and it is easy for the koi to be unadaptable. Another problem to pay attention to is not to let the oil contaminate the bathtub, otherwise it is easy to cause hypoxic suffocation.

Second, the cleaning of the fish tank.

If you buy the kind of fully automatic fish tank, it is equipped with a cleaning system, and you can change the filter once every half a month or clean it once. But koi is not so practical and complex equipment, so the fish tank is easy to grow green moss, the way to prevent green moss is to clean the fish tank often, clean the fish tank to fish out, and keep half of the water do not pour out, after cleaning the fish tank pour back.

If you don't have time to clean your fish tank often, you can put it in a cool place away from direct sunlight and put wallpaper on a sunny area.

3. Don't plant aquatic plants.

Now those aquatic plants are very expensive, and if you raise koi, the aquatic plants will be eaten quickly, and the gains outweigh the losses. And eating the leftover residues can easily pollute the water quality. My method is to raise aquatic plants in a separate pot and regularly add aquatic plants to the tank to replenish nutrients.

Fourth, the control of water temperature.

As mentioned above, koi fish can survive the cold winter, but the vitality of the winter is relatively poor. If the weather is particularly cold, pay attention to putting some nutritious fish feed to supplement calories. If the weather is particularly hot, feed less food, clean the fish tank more, and change the water more.

When changing the water, pay attention to the water temperature, if you suddenly put the koi fish in cold water, it will be difficult for it to adapt, so put the water in the basin to cool for a while, so that the water temperature and temperature are about the same before pouring it into the bathtub.

5. Food. Koi fish are omnivores, and insects such as crickets and earthworms can be eaten, and vegetarian foods such as bread crumbs and steamed buns are no problem. In short, it basically eats everything you eat, so I raise koi fish like a dog, and I eat the rest of the corn for them to eat.

If you feed a lot, you should change the water frequently, and the more you feed, the worse the water quality will be. How much feed is appropriate for a fish? The general standard is that after you feed the koi, the koi will eat quickly, and you will feed a little more.

If the koi haven't eaten within 5 minutes, you've fed a lot.

6. Illumination of lights.

Koi do not need special lighting, but for sterilization, you can also buy those that have a sterilizing effect and leave them on for an hour or two at night. I also had this device, but I couldn't see any immediate effect, so I stopped using it for a while. Of course, this is not to say that this lamp is ineffective (some hospitals also use this principle to sterilize), but I can't see it.

1. Before raising koi, you need to put the water in the sun for exposure, remove the chlorine in the water, control the water temperature at 21 27 when breeding, and ensure that the oxygen in the water is sufficient.

2. When raising koi carp, it can be given natural bait such as vegetables, bean sprouts, melons and fruits, etc., and animal bait can also be fed such as daphnia, earthworm, etc., and it can also be fed with artificial feed such as fishmeal and barley flour, and it can be mixed into pellet feed in proportion.

3. When raising koi carp, it is also necessary to ensure that the water quality is clean and hygienic, and the pool needs to be cleaned after the koi have eaten, and the water needs to be changed regularly to avoid bacteria in the water and affect the normal life of the koi.