The most complete experience in koi farming! Teach you to choose koi culture equipment, buy koi, choose koi tank and water quality treatment

In recent years, koi has become more and more popular in China. Do you want to know more about the experience of koi culture? Then follow the editor to learn how to select koi culture equipment, how to buy koi, how to choose koi tank and how to treat the water quality of koi.

I. Development of koi culture

Koi originated in Japan, developed and flourished in Japan, and became the national fish of Japan. Nowadays, the development of koi in China is also very rapid, the experience of brocade carp culture has also reached a high level, and some high-quality koi can be directly compared with fish of Japanese origin.

II. Experience and techniques of brocade carp culture

1. How to select the equipment for brocade carp culture?

In koi culture, the necessary brocade carp culture equipment are: lighting equipment, oxygen equipment, filtration equipment, other utensils and so on. Lighting equipment is one of the necessary equipment in most fish tank koi culture technology. Lighting equipment can be divided into two parts: lamp tube and lamp holder. Generally, the lamp of koi culture can be divided into fluorescent lamp and ultraviolet germicidal lamp. Fluorescent lamps have multiple choices, which are beneficial to the hair color of koi and make it more beautiful. The ultraviolet germicidal lamp uses ultraviolet light to sterilize the water body of brocade carp. However, it should be noted that this kind of light should not be turned on for more than five minutes, otherwise ultraviolet rays will burn koi. Therefore, the germicidal lamp can not directly illuminate the koi, it should be put in the filter to illuminate the water passing through the filter.

At present, high reflection lampholders are most commonly used by people. The mirror in the lamp holder will reflect the light shining upward from the lamp tube below. So as to strengthen the light source and avoid waste. In terms of materials, lampholders are made of plastic, aluminum and so on. Among them, the aluminum lamp holder has the best heat dissipation, and the grade is relatively high.

The function of the aeration equipment is to inflate the water body and provide the koi with the necessary dissolved oxygen. At the same time, some aeration equipment can also make the water flow and avoid the inconsistency of water temperature. It can also increase the air pressure in the water and make the water fluctuate, thus removing harmful gases such as carbon dioxide and hydrogen sulfide in the water.

In the process of raising koi, the most important thing is the filtration equipment. The filtration equipment is mainly composed of water pump and filter. Is the most important part of the filtering system. There are many kinds of filter materials in the filter, which are mainly driven by water pumps, so as to make the water pass through biochemical, physical and plant filtration to achieve the purpose of cleaning water quality and reducing the number of water changes. General filters are divided into: upper filtration, bottom filtration, side filtration, mixed filtration and so on. The choice of water pump is mainly based on different filters.

2. How to choose and buy koi?

There has always been a standard for the selection of koi, which is often used in various koi competitions. Now it mainly uses a system of 30 points in posture, 20 points in color, 20 points in pattern, 10 points in quality, 10 points in taste and 10 points in style. It can be seen that the purchase of brocade carp should be considered from these aspects.

Body shape and color

The size of the carp requires a straight back, a balance between the left and right sides, a steady posture and a strong body. The shape and mouth position of the cheek are correct, no askew, both ends are full and not sunken, each fin should be symmetrical and complete, and be flexible when swimming. Color is the most intuitive embodiment of koi, the choice is bright, gorgeous, clear markings, neat edges, dazzling as the top grade, as for markings, it can be chosen by personal hobby.

For the identification and selection of koi, the first thing is to choose its quality, which is very important. The red substance of koi is peach red, without increasing color, naturally red is its own red. Koi with good red quality, even if it is not fed with Seyang feed, will naturally become red after a period of breeding. Such red is beautiful, thick and very good red. If you use Seyang feed to promote the red, in the sense of relatively muddy, some "affected", not very natural. The quality of red matter mainly comes from heredity and has a great relationship with parent fish. If the color quality of parent fish is good, its offspring will inevitably have good color quality, which is the law of biological species, so when breeding and selecting parent fish, the requirement of color quality is very high.

In the selection of parent fish, the color quality and pattern are preferred, while compared with the pattern, color quality should be given more priority, preferably 80-90 cm large fish.

It is generally difficult to distinguish between 3 and 10 centimeters of small fish. if it is more than 15 centimeters, it will be a little easier. Specifically, the species with red spots, in 3-10 centimeters of fish fry, red spots are not very obvious, some will also have color infiltration. Poor quality fish, the erythema will also change, there will be a retreat, especially in the second half of the erythema, often after growing to a certain extent, leaving a white background, becoming a secondary fish. Small fish with blurred erythema are of poor quality. no matter how big they are, they should not be left to continue to raise, but should be eliminated at the right time.

For fish of the same birth who grow up under the same conditions, a darker color is better than a lighter color.

As for the old fish, it is more difficult to distinguish and judge the quality, but we must look at the glossiness of the erythema. The erythema of this kind of silk general bright color is not easy to fade to belong to the high quality; the surface is rough, the color is uneven, and there is no certain thickness. This kind of erythema is also easy to retreat, and the fish of this quality should be eliminated.

The selection of Dazheng tricolor

First of all, the mouth is white, the body erythema distribution is better, before and after the distribution of ink spots; there is ink on the head or no erythema is not selected. The high quality of erythema can be seen vaguely under the ink spots on the back. If you choose something with only a little ink, it will fade to red and white in the autumn. It is impossible to develop excellent big carp without typical strong ink.

For koi under the age of three, first of all, there is a period of quality performance, and there are very few edge-cutting parts when they can distinguish. The important thing is to judge according to the nature of their parent carps and what they will become when they grow up. This is not only important when choosing a young fish, but also a carp that grows up at the age of two and three. If you are about three years old, it is good to buy patterns first at the age of three, but at the age of three, due to the change of patterns and the disappearance and increase of color spots, it is often difficult to stay and continue to develop big fish. At the age of three, it is a good way to observe the brother carp of the same birth to understand its situation at that age and to select the carp according to its changes.

< points for attention >

Determination of species collocation and quantity of ① koi

Most of the koi in the pond are red and white, Dazheng tricolor and Zhaohe tricolor, and the rest can be matched with 1-tailed light carp or other varieties of carp, which is luxurious and beautiful in group travel. If there are too many miscellaneous fish, it will affect the overall US capital.

The number of koi purchased depends on the capacity of the fish tank. The best feeding method is to raise as little as possible, which is of great benefit to the growth and development of fish and the maintenance of water quality. Only in this way can koi enjoy the fun of koi perfectly because of its bright colors and clear water quality. Therefore, a small amount of breeding is one of the secrets of raising koi. The best period for the purchase of koi is from September to December every year. Because at this time, good fish will be on the market one after another, koi trading is the most active, and there will be more opportunities to encounter high-quality koi.

Where to buy ② brocade carp

Nowadays, with the development of koi, there are more and more ways to buy koi, and it becomes more and more convenient to buy koi. Several mainstream ways are: fish market, koi farm, online shopping, fish friend transfer. Among these kinds, it is recommended to go to the koi farm and buy it in the fish market.

③ brocade carp price

As mentioned earlier, there is no certain standard for the price of koi in the market, so how to judge the price of a koi? those who understand it will not say it, and those who do not quite understand suggest not to buy it immediately. You can ask the deep fish friends to make a purchase after comparing the goods.

Health of ④ brocade carp

When buying koi, you must buy healthy koi. Originally, koi is fragile and easy to get sick from one environment to a new environment, but you should pay attention to the purchase of sick fish or infectious diseases of koi. Therefore, it is best to see it in person to buy koi. After all, some diseases cannot be seen without careful inspection. Therefore, when buying koi, you must choose those in good condition and like swimming on the surface of the body without abnormality.

3. How to choose the koi fish tank?

To choose a fish tank, first of all, we have to consider the safety of the koi, because it is in the water, so we have to consider the pressure resistance of the fish tank itself, which can withstand the pressure under a certain amount of water, and the height of the fish tank. We should all have heard of the story of the carp jumping to the dragon gate, so in order to prevent the koi from jumping out of the tank and dying, we have to choose a large fish tank as high as possible. In addition, we have to consider the filtration system of the fish tank to the water quality, which must be taken into account.

4. Treatment of water quality

In terms of water quality treatment, it should be followed: regular water change, necessary aerator, selection of appropriate culture density, feeding less and more meals, regular water quality monitoring, strengthening filtration (physical, biochemical, plant), and finding ways to cool down when the temperature is too high.

Water quality is very important when raising koi. Water should be changed regularly, usually about 1/5 to 1/3 in three or four days. The frequency of water change is felt according to the water quality in the fish tank. Moreover, the cleanliness of water quality determines the appetite, even health and safety problems of koi; koi is larger in size and has a greater demand for oxygen, especially in the fish tank, which needs oxygenation equipment to improve the living environment of koi; choose appropriate density culture to reduce filtration pressure and avoid the deterioration of water quality. Koi has no stomach and does not have an accurate concept of eating. Once excessive intake will cause indigestion, or excessive excretion will worsen the water quality environment, the best feeding is to eat less and eat more; water quality monitoring should be carried out regularly to avoid nitrate and ammonia nitrogen concentrations in the water from being higher than the safe value; the filtration system is very important in the whole work, and the sundries and toxic substances dissolved in the water are eliminated by filtration. In order to filter to the extreme, regular cleaning of filter media and addition of nitrifying bacteria can make the filtration system more perfect.