Silver Dragons can adapt to neutral water quality and water temperature above 22℃, the optimal temperature is 24-28℃. The water quality should be clean, and the tap water used must be dried and treated. pH value between 6.5-7.5, DH value 3-12. nitrite content as well as chlorine content should preferably be zero.　New fish in the tank: When new fish are bought, the air pump in the tank should be run for at least 24 hours to completely eradicate chlorine from the water. If you have been using a bio-filter then it is best to allow the water to reach a pH of 6-7 and a water temperature of 25 degrees Celsius. Add a pinch of table salt (about 1 or 2 teaspoons per 5 gallons or 20 liters of water) to the tank to reduce the risk of fungal attack and to keep the fish healthy and improve its appetite. If possible, it is better to take water from the new fish's original tank back to your own tank (if there is no problem with the water in the original tank), and it is better to take 1/3 of the water back to help the new fish to react to the sudden change of environment. It is recommended to keep the dragon fish from a small age.　Daily management: change at least 20%-30% of the water every week, and the ammonia level should not exceed 0.1 parts per million (mg/1). Do not make sudden changes in temperature and PH value, such sudden changes will lead to sudden death of chinook salmon. Test the PH value and other toxic substances weekly to encounter the unintended consequences. Be careful when changing the water, to avoid the chinchillas being frightened. And you must avoid completely changing to new water when keeping your dragonfish, as this can harm the fish. If you see the fins and scales of chinchillas fall off, it is caused by too much water change you can pause to change the water and they will recover naturally; but the amount of water change should not be too little, too little will cause the fins to become opaque, cloudy eyeballs and serious gills will be caused to turn over.　Fish tank size: Since the dragonfish is a large fish, the fish tank should be at least 1.5 meters long, 0.5 meters wide and 0.7 meters high. The fish tank must be covered, the dragonfish belongs to the upper swimming fish, like to jump, to avoid no one to jump out of the tank and suffocate and die.　Light: red dragonfish need a lot of light, the best daily light up to 4 hours. Other dragonfish are also best with up to 8 hours of light. Some fish enthusiasts, such as keeping red fish, like to use red light to illuminate the red dragonfish so as to achieve better results. The best light for chinchillas is daytime daylight, and prolonged use of lights will darken the back of the chinchilla.　Filtration: Dragonfish juveniles are too big so they are not suitable to be kept in aquariums. If the tank is large, then the problem of filtration will be more prominent. Applicable to the dragonfish breeding filtration system mainly has the upper filter, external filter, upper + pumping sand layer filter, overflow filter several kinds. But it should be noted that in the arrangement of the dragon boat box you should consider the arrangement of a water motor (surfing pump) The benefits of doing so are great: First, you can form a strong water flow, second, increase the amount of dissolved oxygen in the water, third, more important is that the dragon boat to maintain a certain amount of movement to maintain the fish body's beautiful shape, fourth, but also very important is that the dragon boat can be avoided to turn over the cheeks, the occurrence of the turn over of the gills can be trimmed turn over the gills! The use of a water lifting motor during the recovery period will help to smooth out the growing gills.　Feeding of chinchillas: When chinchillas eat too hard, they may hit the tank at an angle and get hurt, so it is better to feed them in the middle of the tank. Dragonfish belongs to the meat-type animals, most of the dragonfish's recipe for, frogs, loaches, cricket, goldfish, grasshoppers, shrimp and so on. In feeding there is a problem of adding color, for example, red dragon, feeding red arrow or shrimp will play a role in the red dragon's color, because the red arrow and shrimp body contains red pigment. 12 cm below the juvenile fish have just begun to eat raw bait, this time you can feed the white breadworms, shrimp (be sure to remove the head and tail, preferably peeled into a shrimp ball feeding in order to avoid the hard shell of its stomach), bloodworms and other more palatable bait. Eat small meals and feed four times a day. About 15 centimeters of small lobsters can be fed normal breadworms and shrimp (shrimp is best to remove the shrimp sword), you can also feed 1.5 centimeters of small fish. At this time, the chinook grows rapidly and eats amazingly. You can increase the baiting frequency and baiting amount appropriately. More than 20 centimeters of lobster can be fed larger fish, shrimp, loach, meat and other bait. You can also feed live bait such as various insects, which are the favorite food of chinook salmon, but be careful not to let these baits be contaminated. In addition, internal organs, especially liver is not suitable to feed chinook, its higher fat will cause diseases in chinook. Goldfish in live bait is not a good bait, and studies have shown that infectious diseases or parasites contracted by exclusively goldfish-eating chinooks kept in small aquariums are almost exclusively transmitted by goldfish. The best artificial bait is to use beef with less fat content, of course you can buy finished chinook-specific bait if you have the means. However, when you first start feeding artificial feed the dragonfish will be very uncomfortable and need to tame the bait artificially.