Red dragons can be artificially propagated, which many people think is just groundless. It was not until Japan introduced outstanding red dragon individuals from Singapore and Malaysia from 1995 that everyone really realized. 1950 years ago, Asian arowana was widely distributed in Indonesia, Vietnam, Thailand, Malaysia and other parts of Southeast Asia, and it was also an extremely important natural food for local residents. The body color changes of arowana growing in clean river water, such as orange-red, cyan, gold-red, platinum, etc., actually come from different habitats, resulting in local species differences. From the distribution of Arowana, they are all near the equator, and the rainfall and annual average temperature are typical tropical and subtropical climates. Therefore, the pure water quality above 20 degrees Celsius has become an indispensable ecological condition for Arowana. The pH value of the waters inhabited by wild red dragons is between 6.4 and 6.8, and the hardness is slightly lower than 8. In the original water quality, there is a little more bicarbonate and calcium than ordinary soft water, so the color of the water quality is also turbid, which is quite different from the traditional impression of tropical rain forest water quality. In addition, in the arowana producing areas in Southeast Asia, the riverbed is dominated by muddy soil, so aquatic plants are also extremely dense, providing an excellent shelter for natural wild arowana. Among them, Ailuropodium hybridum and even Pennisetum is the best natural shelter. Under these huge aquatic plants, it can not only prevent the hunting of eagle families, but also easily become the source of live bait prey such as frogs, shrimps and small fish. For countries that have successfully exported the offspring of the red dragon: Singapore, Indonesia and Malaysia, it is not a very difficult project to produce the little red dragon regularly and quantitatively.

The cooperation between Singapore government and non-governmental organizations in the rehabilitation of Red Dragon ranks among the best in Southeast Asian countries. On the one hand, we are studying the reproductive rehabilitation in China, and on the other hand, we are striving for the recognition and licensing of the microchip implantation method adopted by the Singaporean government by various organizations in Washington. Finally, Singapore later became the first Asian country in the world to export the descendants of the reborn red dragon, and also the first country to export electronic microchips implanted in the body. The young red dragon fish exported from Singapore is about 20 cm long and the standard price is about 3,000 US dollars. The main exporting countries are Japan and the United States.

The technician of Singapore Bureau of Origin adopted the semi-natural ecological simulation method, and he polycultured 10 ~ 20 pairs of mature arowana (at least 50 cm above) in an outdoor pool at one time. In addition, some semi-emergent plants are planted in the pool for natural paired arowana to nest when laying eggs. And keep a little water flow, feed it with frozen bait or even fish paste every day, but try not to let the water turn green in the control of water color, otherwise parasites and hypoxia will easily plague this large fish. Every year, from the end of 10 to the beginning of March of the following year, it is a vigorous mating period for red dragons, especially from 1 1 to 12. A large amount of fresh water at 24 degrees Celsius can often stimulate female fish to ovulate quickly.

Male and female fish cruise each other in shallow waters with low visibility, getting closer and closer until their bellies are close to each other. A mating action takes about 1 ~ 2 hours, but in fact, the female's oviposition behavior is only about 20 minutes. The rest of the time is spent on insemination, and the male fish holds the eggs in his mouth one by one. Because the "male" arowana is responsible for hatching and protecting fish eggs, the female fish are either expelled or guarded. Because all the movements are carried out under muddy water, it is often heard that arowana swallows eggs day by day in the early stage of rehabilitation. Therefore, in order to improve the survival rate of larvae, some technicians began to shake the eggs out of the male's mouth early to reduce the loss, which is said to be the key to the success rate of reproduction.

Many people let arowana mate and lay eggs without knowing it, but they didn't notice it at all and missed the opportunity. In Singapore's refilling records, the average male fish will have eggs in his mouth for about 50 days before letting the small fish swim in and out. At this time, the small arowana is at least 6 ~ 8 cm long, so the mouth of the male fish is often stuffed all over the floor. It is also speculated that the reason why the male fish will eat more and more eggs comes from the concern about the capacity of his mouth in the future. However, in any case, only 30% of the young fish on the right can survive. So now, under the condition of mature culture technology, technicians usually shake out the newly hatched arowana from the mouth of the male fish about 14 days after spawning, when the small fish have gradually hatched.

In this way, the success rate will often increase to more than 80%, which is exciting. A pair of mature arowana usually can produce 1 ~ 2 times a year, and the number of eggs laid each time ranges from 50 to 80. However, there should be higher productivity in the future, and the young arowana can grow to a medium size close to 1 kg in about1year. Therefore, today's profits between governments in Southeast Asia are regarded as an excellent source of funds to earn a lot of foreign exchange. Indonesia and Malaysia are rich in natural resources. On the basis of Arowana's rehabilitation, they also monopolized the geographical position of Red Dragon. Therefore, since 1983, the Indonesian government listed the red dragon as a national creature, all three East Asian countries have devoted themselves to the reproduction of the dragon. Compared with Singapore, Malaysia and Indonesia can easily introduce high-quality water quality from the origin of the red dragon, which is similar to the river bend pattern simulating the natural environment, or a large number of natural ponds. Although the export speed of India and Malaysia is not as fast as that of Singapore, due to the rich biological resources, the observation of the red dragon is slightly accurate and meticulous.

According to the information provided by the Malaysian Fisheries Bureau, the red dragon, which grows in the near-natural water environment, may reach the mature age in about three years because of the suitable water temperature and food, and can start to pair and lay eggs. In Malaysia, due to abundant fish resources, there are independent cement ponds for adult fish to breed, breeding fish to mate and even young fish to breed. Generally, the aquaculture pond is rectangular, about 30 meters long, with a width of at least 10 meter and a water depth of 180 cm to 150 cm. The water quality of the aquaculture pond is continuously controlled at pH 6.5, and the turbidity is between 25 and 28 degrees Celsius.

The daily feeding is mainly fish paste, and when the fry grow to a certain size, they will move into a larger mature dragon fish pond. Usually, the water quality of each pool is a mixture of nearby groundwater (well water) and tap water. Because the water contains carbonate and argillaceous particles, the water color is coffee milk color, and the visibility is not high (10 ~ 15 cm). This is slightly different from the situation of fish farms in Singapore. However, according to Malaysian operators, under this water quality, the color of arowana will be stronger.

However, changing fresh water regularly every day seems to have become an essential formula for all countries. They will deliberately select the paired male and female arowana in the adult fish pond and move them to another quiet pond, so that they can gradually chase, dance and lay eggs in an undisturbed environment. The situation that male and female fish attack each other or eat eggs will also be greatly reduced in such a leisurely environment. What is more special is that the design of the bottom of this fish pond is slightly special, that is, there are deep water areas and shallow water areas in a pond. It is said that when laying eggs, the mating action of arowana always has preference, and the shallow water is full of phytoplankton, which is definitely useful.

The spawning time of male fish varies slightly with the water temperature, ranging from 45 to 60 days. When an egg is laid, the egg diameter is at least 1.5cm, and the success rate can often reach more than 80% under artificial incubation, and the artificially hatched arowana larvae can eat all kinds of plankton in the water about 45 days after laying eggs, even the small red dragon can easily reach more than 10 cm within the feeding period of 2-3 months. If the male fish is allowed to hatch without artificial incubation, once the small arowana can freely enter and exit the male fish's mouth, it is at least 8 cm long and has reached the length of commercial sales. 65438 +0 Red Dragon is mainly red, which belongs to it in detail. Peppers with red stripes and blue background, bright red gill prints and scales are mainly red outer edges. All the fins are red, so are the kisses. If the lights are turned off (because the lights in the fish tank have a red wavelength, the color of the fish body is not completely true when the lights are turned on), the scales are blue and purple, and the lips of the fish are tilted when they are young, and their heads are pointed when they become fish.

Because the red dragon is a protected animal, the import is restricted, so it is not so easy to buy a good arowana, because arowana is almost the same as a child (arowana will only grow up)

The color change hasn't changed since I was a child.

Generally speaking, there is no red pepper dragon in the arowana in the aquarium, because it has reached the stage of large-scale investment promotion. Provide a way to buy a better red dragon: it is best to have a red body color or red spots in the little dragon period.

The body color of blood red dragon is redder than that of pepper red dragon, the gill cover color is redder, and blood red or vermilion is all over the body. (orange dragon)

The second dragon is mainly orange. When young arowana was young, its lips were flat and its head was not pointed. The gill cover of adult fish is orange or light orange, and the fins are not obviously red or light orange. Fins and caudal fins are red or light orange. It is obvious that the tail is orange or colorless.

If the reared arowana does not have the above characteristics of No.65438+No.0 arowana, it may be a semi-red arowana. No matter how you raise it, it won't turn red all over, but it hasn't completely lost its appreciation value. It can be raised the day after tomorrow to develop a suitable body color, which is also a good arowana. (No.1 and a half red dragon)

This arowana is a hybrid, which is made by crossing a red dragon 1 with a blue dragon, and it is similar to a red dragon 1 in its infancy.