How much is the price of 5cm small golden arowana fry? What is the standard of appearance? How to raise it?

Goldfish scientific name is "beautiful bony hyoid fish", is a very ancient freshwater fish, because the body is very similar to dragons, so in Chinese mainland is also known as "arowana", according to taxonomy belongs to the osseohyoid family (also known as osteolarynx). Arowana is now widely used as fengshui fish to raise, which is of great ornamental value. So, how much is the price of 5cm small golden arowana fry? What is the standard of its appearance? How to raise it?

There is a regional difference in the price of arowana, so it is difficult to have a standard answer. In addition, it also depends on the species, arowana can be divided into arowana, silver arowana, black dragon fish, red arowana and green arowana and so on. Generally speaking, the price of golden arowana is much more expensive than that of silver arowana, the most expensive one is more than 100,000, and the cheapest one is hundreds of yuan.

Moreover, now 5-10cm arowana is basically not seen on the market, are small fish, there are egg yolks. The market is basically around 20cm, new arowana, it is recommended that you can choose Azure Dragon or gemstones. Azure Dragon 20cm varies from 400 to 600 yuan in different places, and the price of gemstones is about 1200 yuan.

Of course, the price of arowana also depends on the appearance, and there will be a great difference in the price of arowana with different appearance. For example, if the red dragon is good at each other, it is possible to have hundreds of thousands or hundreds of thousands of dollars. Here is a brief introduction to the appearance standard of the medium-sized arowana with a length of 25 centimeters.

1, color: according to the species of arowana to appreciate the color it should have. Of course, the brighter the better.

2. Body shape: the proportion of each part should be symmetrical and have majestic momentum.

3. Scales: be neat, bright and smooth, undeformed, and match the color of the variety.

4. Beard: be long and straight.

5. Fins: the fins in all parts should be large and open, the stalks should be smooth, and there should be no distortion.

6. Gill: to match with the Radian of the fish body, the soft part of the edge of the operculum should be flat with the body of the fish, and the operculum should have the proper color and brightness.

7. Eyes: be bright and energetic, without looking down.

8, mouth: to close, the jaw does not have protruding phenomenon and fat (meat formed by rubbing water tank glass).

9. Teeth: be neat and fine, do not have defect and discoloration.

10. Anus: stick flat with the belly of the fish and do not protrude.

11. Swimming posture: be slow and generous when swimming and smooth when turning.

How to raise arowana?

Raising arowana, you can see whether they are healthy or not from their shining scales, and scientific feeding methods and lights to help them get natural light is also a very important point in arowana breeding. Xiaobian will briefly introduce some methods of arowana breeding for you.

Studies have shown that the hair color of arowana is played by pigment cells (chromogenic cells) in the dermis under the fish scales and guanosine on the outermost surface. There are a variety of cells scattered in the dermis, which can stretch with the intensity of light or changes in the environment. Various pigment cells have the function of absorbing and reflecting light wavelengths. Therefore, in different light environments, it will show a variety of different colors.

Moreover, in the environment of different light intensity, the color of arowana will also change. For example, if the arowana is in a strong light environment, then the pigment cell expands. When the pigment cell expands, the pigment expands along with the radiation around the cell. The area of the pigment cell expands and the color deepens significantly. Where there is more red pigment, the darker the color is.

On the contrary, if the arowana in the dim light environment, the pigment cells contract, the pigment cells shrink, the pigment molecules become smaller, and the color will fade significantly. At the same time, the pigment will concentrate with the contraction of the cells, and sometimes even shrink into tiny spots, and its color will naturally become lighter or less obvious.

First, insist on changing water for arowana every week. When changing water, we need to pay attention to the need to raise water in advance, and adjust the temperature and PH value of the new water to the same as the old water, in line with the arowana survival standard. It is not advisable to change all the water every week, only 20% and 30% of the water should be replaced each time. When changing water, you should first pump out the old water, and then slowly inject new water along the wall of the fish tank.

Second, arowana needs enough care. The best way to raise arowana is to buy a suitable lamp stick and illuminate the arowana for 6-8 hours a day. It is worth noting that the best light for arowana is daylight. If the light is used for a long time, it will cover the back of the arowana. Therefore, if there are conditions, we should let the dragon fish bask in more sunlight.

Finally, it is necessary to feed the arowana regularly and quantitatively. Feeding arowana should also choose the right food according to its actual situation. To put it simply, immature Yinlong juvenile fish should choose some small bread worms, blood worms and other foods when choosing food. After growing up, the dragon fish can eat some meat, shrimp and other food. Of course, when feeding arowana, we should also pay attention to diversity when choosing food. Professional baits and live baits are organically matched to meet the needs of arowana growth and diet.