The Survival Problem of Hotel Seafood

Little seafood's temporary support method:

1. Use circulating water for a long time to exchange cool and clean seawater to water dishes with less seafood;

2, the water temperature is controlled within 65438 08 degrees Celsius;

3, the water depth is not more than 2 cm;

It's best to find some clean sand and bury little seafood in it for a long time.

5. Be careful not to use strong light or exposure.

It is not easy to raise fresh seafood in hotels. Water temperature, salinity, water change times and mixed culture are all knowledge. Before introducing the water temperature, salinity (grams of salt in 1 kg seawater is called salinity) and taboos of some seafood varieties, let's take a look at what is necessary for hotels to keep seafood fresh. 1. thermometer-measures the water temperature in seafood pool.

2. Seawater concentration meter (also known as salinity meter)-monitors the salt concentration in seafood pool.

3. Thermostat-provides heat energy.

4. Oxygen pump-making oxygen for a single seafood pool.

5, circulating water equipment-let the water in seafood pool circulate up and down, left and right, and naturally increase oxygen in the flow.

6, refrigeration equipment-reduce the water temperature in the pool.

7. Filter-Filter impurities in the pool water.

Water temperature, salinity, survival period and feeding method of common seafood varieties;

Australian lobster: summer water temperature 12- 15℃, winter water temperature 18- 19℃, salinity 24-26%. Generally, lobsters can live for a week and change water once every three months without muddy water. Because Australian lobsters are vigorous and active, except crayfish,

Xiaoqinglong (crayfish): water temperature 17- 18℃, salinity 24-26%. Generally, it can survive for 3-4 days. You can mix lobster.

Dolphin and saury: water temperature 18- 19℃, salinity 16- 18%. Feed 15 days at most, and change the water once a week. They can be mixed.

Chinese mitten-handed crab, rare crab, swimming crab and cream crab: water temperature 17- 19℃, salinity 23-24%. Generally, it can live for 7 days, and all crabs can be mixed.

Meretrix meretrix: water temperature 13- 15℃, salinity 12- 15%. They can live for about five days. Generally, they are fed by running water, and there are no contraindications for mixed culture of these shellfish, but they are placed separately because of their small size.

Sturgeon, stickleback and shrimp: water temperature 12- 15℃, salinity 0. Because sturgeon is fierce, it needs to be fed separately, and other species can be mixed.

Shrimp, Neopenaeus monodon, snail shrimp and grass shrimp: water temperature 18- 19℃, salinity 16- 18%, and can live for 1-2 days at most. Because shrimp can easily deteriorate the water quality, it should be changed every 1 day. Because hotels feed a lot, they usually feed them alone.

Left-handed fish: the water temperature is about -2℃ and the salinity is 24-25%. Can feed 15 days at most, and need to change the water once a week.

Scallop, scallop, mussel and snail: water temperature 0℃, salinity 18-20%. They can be kept for up to 3 days and are usually fed with tap water. These shellfish generally have no contraindications to polyculture, but they are all placed separately because of their small size.

Raw materials for spots such as East Star Spot, Stone Spot, Su Mei Spot, Rat Spot and Tiger Spot: the water temperature is about 20℃ (constant temperature is required in winter) and the salinity is 24-26%. Generally, change the water once a week, and you can mix the rest.

Mytilus: The water temperature is about -2℃ and the salinity is 24-25%. Generally, it can be stored for 5 days, and the water is changed once every 2 days on average. Can be mixed with left-handed fish.

California bass: the water temperature is 23-28℃, although the origin of California bass is pure fresh water; However, as long as the salinity is kept below 10%, it can generally survive for 20-30 days, change water once a week, and can be mixed with other fish species.

Live abalone: water temperature 12- 15℃, salinity 10- 12%. It can be stored for 15 days at most, and the water is changed once every five days on average. Generally, it is fed alone.

Live sea cucumber: the water temperature is about 15℃ and the salinity is 10-22%. It can be stored for up to 3 days, and the water is changed once every 2 days on average. Generally, it is fed alone.

Meretrix meretrix, snail, Meretrix meretrix and swan egg: the water temperature is 65438 00℃ and the salinity is about 65438 02%, which can be stored for up to 5 days. Generally, these shellfish are fed with running water. Generally, there is no contraindication to polyculture, but they are raised separately because of their small size.

Precautions:

1. When tap water hooks seawater, it should be allowed to stand for more than 12 hours in advance to remove impurities in the water.

2. Seawater essence is a special salt for feeding seafood and cannot be replaced by ordinary salt.

Feeding seafood does not mean that the more oxygen, the better. If too much oxygen is filled, the gas discharged by the oxygen pump will kill seafood.

4. The pool water should be disinfected frequently with sapphire solution, and 2-3 drops of water should be dropped every 100 kg every time the water is changed.

I hope I can help you.