How to send this fish by express?

How to send fish by express mail? Some fish sellers need to sell them by mail. Live fish packed in vacuum can survive for 2-3 days. If the demand for oxygen in packaged fish is not high, the survival time will be longer. Let's see how to send a fish express.

How to send the fish express 1? If you send live animals, you'd better explain it to the courier company. You can send them by mail, but you can't think of any other way. Another person explained to the courier company that the mail was alive, and if they received the parcel, they would take special care of it. This is mainly to improve the survival rate of fish and avoid the tragedy of fish dying on the courier road before going home, which would be embarrassing.

If it can be mailed, it is suggested to stop eating fish for two or three days and empty the stomach of the fish to avoid affecting the water quality and avoiding dead fish. Note that the packing density of fish must not be large. If not, take another bag. Big fish and small fish should be packaged separately to avoid accidental swallowing. Don't mail the fish that will be produced soon. It is difficult for big fish and eggs or small fish to survive on the way.

Packaging must use good quality packaging bags, double-layered, and tightly tied bag mouth. If the journey is long, it is better to add a little methylene blue. If possible, be sure to add some oxygen to the bag to prevent the fish from dying from lack of oxygen. You can go to the fish shop and ask the boss to get some oxygen, or even ask the boss to help pack it, as long as you give people a little labor fee. After all, people are more professional than us in this respect, and it is most appropriate for professional people to do professional things.

If the weather is hot, put less ice cubes for heat insulation, if it is cold, do a good job of heat insulation. It is most suitable to use foam box, which not only insulates heat, but also prevents leakage. The lid of the foam box must be wrapped with tape.

How to send fish by express? Vacuum-packed live fish can survive for 2-3 days, because there will be water and oxygen in vacuum-packed live fish. If the packaged fish does not require high oxygen, it will survive longer.

If they can be refrigerated, they will live longer.

Live fish packed in vacuum need to be oxygenated immediately after they are received, so that they can adapt to the external environment quickly.

The fish delivered by express delivery is usually put in a bag, which has a certain amount of air inside and a heat insulation layer outside to avoid the temperature drop, so that it can live for several days. Fish is a kind of variable-temperature aquatic vertebrate, which swims through gills, swings of tail and trunk and coordinated movements of fins, and feeds on upper and lower jaws, belonging to Vertebrate subfamily of Chordata.

How to transport fish over long distances to ensure that they will not die?

First, keep the temperature low.

If you want to transport fish for a long distance, you must first control the temperature to ensure its survival. Different from daily fish farming, it is better to keep the temperature low during transportation, because fish are unwilling to move in low temperature environment, so they can naturally conserve their physical strength, consume less oxygen and have stronger tolerance to the environment.

Second, leave the air layer.

In order to ensure that fish can breathe during transportation, it is necessary to leave an air layer in the fish container, that is, do not fill it with water, and the water is in contact with the air, so that some air will enter the water when shaking, so as to keep dissolved oxygen in the water body, thus preventing fish from being deprived of oxygen and threatening their lives.

Third, prepare drugs.

Some problems will inevitably occur during transportation, the water quality may deteriorate, and even fish diseases may be infected. In order to avoid these situations, some drugs, such as penicillin and salt, need to be put in advance. Among them, penicillin needs 4 million to 8 million units per cubic meter, and salt is added 1-3 kg per cubic meter.

Fourth, pay attention to density.

In order to ensure the survival of fish, we should also pay attention to the density of transportation. If it is finished fish, one cubic meter of water can transport 700-800 kilograms of fish, and if it takes longer, it can only transport 500-600 kilograms of fish. For fry, one cubic meter of water can transport about 800-/kloc-0.00 million fish.

How to send the fish by express? What should I do if the fish comes back by courier and is dying?

If you want to save the dying fish, the first thing to do is to change the water, which can improve the water quality and reduce the bacterial content in the water. After that, we should pay attention to increasing the temperature, generally increasing 1-2℃, which can stimulate the fish, accelerate its metabolism and let it discharge harmful substances. In addition, salt should be added properly to improve the osmotic pressure of water and reduce the possibility of bacteria invading fish. If the situation is serious, it should be soaked with drugs.

First, change the water in time.

No matter what disease the fish has, it needs to be replaced in time. Improving water quality plays a great role in the recovery of fish. Usually, the interval of changing water is more than 5-7 days, but it is best to change water more frequently during illness, preferably every other day, and the amount of water changed is about one quarter. This can make the water quality better, and if there are bacteria and parasites in the water, it can also reduce their number.

Second, raise the temperature appropriately.

After changing the water, the next step is to raise the temperature. The first thing to cure fish is their own resistance. Increasing the temperature can stimulate fish and stimulate their metabolism, so that harmful substances can be excreted as soon as possible and stimulate immunity. Generally, the temperature can only be increased by 1-2℃, and it won't do much if it is too high.

Third, pay attention to salt.

Although warming water supply can stimulate fish and help them recover better, it also has some disadvantages, that is, it will accelerate the reproduction of bacteria and parasites in water. In this case, it is necessary to change the osmotic pressure by adding salt, which can reduce the penetration of water from the outside to the inside, and then control the invasion of bacteria to fish.

Fourth, drug soaking.

Generally speaking, most diseases can be treated by changing water, raising temperature and adding salt, but some diseases are incurable, which requires additional drug treatment. According to the condition of the fish, choose the appropriate medicine to make a solution, and then soak the fish, usually once a day for 10-30 minutes until the fish recovers.