Silver Dragon breeding method

Yinlong is a kind of high-grade tropical fish. The price of ordinary silver dragon ranges from more than ten yuan to one thousand yuan, and the most valuable red-eye silver dragon sells at a higher price. The high-grade feeding experience of high-grade Yinlong is now described as follows:
Seedling preparation 1 Burn the boiler, keep the temperature of the pool in the fish room at 28°C, and close the doors and windows. Prevent temperature from falling.
2 Select the fish tank, install filter cotton, activated carbon, coral stone gas pump, water pump, add water to 20 cm, open and check the air pump and water pump to ensure normal operation. Adjust the cylinder temperature control rod to 28°C.
3 Bring the fry back to the field quickly.
4 Prepare fresh water, water temperature 25°C, salt content 1%, nitrofurazone 2PPM.
After the young fish arrived on the field, they immediately added the appropriate amount of fresh water that had been prepared, removed dead and injured seedlings, and re-oxygenated and packaged. After half an hour of observation, they were placed in an aquarium to adjust the temperature. After 1 hour, they were put into the tank.
1 fish tank specifications. The specification is 126 x 48 cm and 300 silver dragons can be placed.
2 fry characteristics. The newly introduced silver arowana has a small yolk sac. At this time, the yolk is mainly used as a nutrient, but from the second day it is necessary to start tame food. The yolk sac disappears about 7 days later.
3 with blood worms tame food. The first 3% salt, nitrofurazone 5 g / l bath for 15 minutes before feeding, feeding carefully and one by one to patiently feeding, to eat in 20 minutes is appropriate.
4 feed changes. Live worms were fed within 10 days and frozen worms were replaced after 10 days. The third month gradually transitioned to shrimp (seawater, freshwater shrimp can be), after the head and tail cut into the size of the appropriate diameter, rinse with salt water after feeding, with a transition to 10 days is appropriate. The bait should be removed 20 minutes after each feed.
5 feeding times and times. During the first month, 5 times a day from 5 am to 10 pm; 4 in the second month, 3 in the third month, and 2 in the fourth month.
6 Growth and density. The silver dragon grows faster. The body length is about 6-7 cm when it first enters; 12 cm in 1 month; 17 cm in 2 months; and 24 cm in 3 months. In the growth process of Yinlong, the stocking density must be adjusted in time according to its growth status. It is best to screen once in January. The first time is 150 tails/cylinder; the second time is 70 tails/cylinder; the third time is 25 tails/cylinder. Afterwards, either reduce the number or move people to the big tank.
7 water level. It is 20 cm at 1 month, 25 cm at 2 months, 30 cm at 3 months and then 37 to 40 cm.
8 sewage. According to water quality and other conditions, every 3 to 5 days of sewage suction 1, can be removed from the bottom of the cylinder dirt, not more than 5 cm water level at a time, the second month from the daily suction of sewage once, each time no more than 5 cm water level . On the fifth to seventh days, filter cotton and activated carbon are washed once.
9 strictly control PH, dissolved oxygen, temperature and so on. The PH is 6.8-7.2, the temperature is 28°C, the dissolved oxygen is 7 ml/g or more, and the hardness is 9-10. Once the change is detected, corresponding measures are taken immediately.
Disease Prevention and Control 1 After the silver dragon vaccine is placed in the tank, 2.4 million units of gentamicin sulfate per cylinder are used to disinfect the water body to kill pathogenic bacteria to prevent the water quality from being corrupted or damage caused by transportation.
2 At present, there is very little disease in silver arowana, and the survival rate of culture is almost 100%. If necessary, it is only necessary to prevent with an appropriate amount of antibiotics (chloramphenicol, oxytetracycline and tetracycline) every week.

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