CATDOLL : CATDOLL: What is the correct way to raise fish in cages? What is the correct way to raise snails in cages?

1. What is the correct method for raising fish in cages?

Advantages of cage fish farming technology

1. Utilizing large and medium-sized water bodies such as lakes, reservoirs, rivers, and shallow seas and harbors for fishery production can improve the utilization rate and efficiency of land resources, not occupy arable land, borrow water and return it, and use water for multiple purposes.

2. Large investment, large output and high efficiency.

3. In principle, any fish that can be raised in a pond can be raised in a cage.

4. Low cost and high output

When farming fish in cages, we need to prepare corresponding cages and invest in cage costs according to the number of fish to be farmed. However, compared with the traditional fish farming model, the cost of cage fish farming is lower than that of traditional fish farming. Whether in terms of breeding, management or fishing, the cost investment is relatively small, but the output of cage fish farming is also relatively high.

5. Save land, high price

2. What is the correct way to raise snails in cages?

1. Selection of snail breeding sites Snail breeding sites should be selected in places with sufficient water sources, good water quality, humus soil and convenient transportation. It is best to have running water. Breeding pond construction. The specifications of snail ponds are generally 1.5-1.6 meters wide and 10-15 meters long, and can also be based on the terrain. The pond is surrounded by ridges, which are about 50 cm high. Inlets and outlets are opened at both ends of the pond, and nets are installed to prevent snails from escaping. At the same time, aquatic plants such as wild rice stems are sparsely planted in the middle of the breeding pond, which can not only increase the land output rate, but also create a good ecological environment for the growth of snails.

2. Stocking quantity and feeding management 1. Stocking density of snails: Generally, 100-120 snails are stocked per square meter. At the same time, about 5 silver carp and bighead carp are raised per square meter for the main breeding. The stocking time of snails is generally in March. 2. Fertilization and feeding: First, some feces are added to the breeding pond to cultivate plankton for snails.

3. What is the correct way to raise fish?

1. Change the water frequently.

2. Proper feeding.

3. Don’t give medicine blindly if the fish is sick.

4. What are the correct methods for raising fish?

1. Feeding: All feeds are nutritious animal feed and white sesame. Animal feeds include water fleas, earthworms, mealworms, caterpillars, and skinworms. The main feeds are earthworms and white sesame. Both red and black earthworms can be fed. Raw white sesame can be fed as the main food. White sesame is easy to buy. Goldfish love to eat it, it is easy to digest, and it is not easy to pollute the water quality. Do not feed the inferior goldfish feed you buy. Because this kind of feed has too much starch, poor nutrition, difficult to digest, and easy to pollute the water quality. Goldfish will be malnourished after eating it, and the growth of goldfish will be slower and they are more likely to get sick. As long as goldfish eat easily digestible food, they will not die of bloating. When to feed? Generally, once in the morning and afternoon every day. It is not advisable to feed too much, and feed until all the food is eaten. Otherwise, it will pollute the water quality.

2. Light: It is best to place the fish tank in a place where there is sunlight for 1-2 hours. In this way, the ultraviolet rays of the sun can be used to sterilize. It plays a role in disease prevention. This can reduce diseases. Try to prevent fish diseases as the main method and use medicine as the auxiliary method. At the same time, due to photosynthesis, the color of the fish body is also brighter and more beautiful.

3. Change water: Change water frequently to increase dissolved oxygen in the water. When changing water, only one-third to one-quarter of the water should be changed. Do not change a lot at once, or the fish will not adapt. It is very important to keep the water in the aquarium clear. Fish can only grow and grow fast if there is sufficient dissolved oxygen in the water. Otherwise, they will stop growing or even die. There is no definite answer to when to change water. It can be determined according to the water quality. Change water more often if the water is turbid, otherwise change less often.

4. Stocking density: Because the rectangular aquarium for domestic use is small in size, it is not advisable to raise too many fish. It is better to raise less rather than more. For example, in a container with a length of 40 cm, a width of 25 cm, and a height of 30 cm, 6 to 8 small goldfish of 5 to 7 cm in length can be raised. For example, in a round glass tank with a diameter of 26 cm and a height of 13 cm, 4 to 6 small goldfish of 4 to 6 cm in length can be raised. Adult fish with a body length of more than 8 cm should not be raised in a small glass tank, but should be raised in a large glass tank or a ceramic tank, and equipped with a small oxygenator to prevent hypoxia. These stocking densities are only reference numbers, and they should be determined by the water temperature, the strength of the fish, and the quality of the water. They cannot be mechanical. Generally speaking, the larger the fish, the fewer the number of fish to be raised; raise more in winter and less in summer; raise more when the water temperature is low and raise less when the water temperature is high. If you master the above-mentioned key points when raising goldfish at home, you will be able to keep them healthy and lively, with bright colors, swimming in the water, and being loved by people, so that you will never get tired of watching them.

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5. What is the correct way to raise fish in a washbasin?

1.

The basin should be large. When raising fish in a basin, the size of the basin should be considered first. A basin that is too small will definitely not work. A small basin means less water, and the water quality is not easy to maintain and can easily deteriorate, thus affecting the health of the fish.

2.

No matter what container you use to raise fish, you must ensure that the water is good. Clear water is not necessarily good water, and green water is not necessarily unsuitable for raising fish. So don't change the water based on the color of the water. If you change the water too frequently, the fish will not be able to survive no matter how clear the water is.

3.

There needs to be enough oxygen. When keeping fish in a basin, a filter cannot usually be installed, which will cause the water to stagnate and no oxygen to enter, which is not good for the fish's breathing.

4.

If you want to feed fish, you need to feed them. Although fish have a strong tolerance to starvation, they will starve to death sooner or later if they are not fed. Generally, you can feed them 1-2 times a day, and feed them until they are 70% to 80% full each time. Don't feed them too much.

6. What is the correct way to raise fish in water?

Disinfection or cleaning of fish tank: If you just bought a new fish tank, you need to disinfect it with potassium permanganate solution. If it is an old fish tank, you need to clean it.

Adjust the dissolved oxygen content and water temperature: fill the fish tank with water, then use an oxygen pump to oxygenate the water, and use a heating rod to adjust the water temperature.

Cultivate nitrification system: Add nitrifying bacteria into the water to establish a nitrification system.

Add fish to the tank: Add fish to test the water. If the fish is normal after a week, you can add fish.

7. What is the correct way to raise fish with well water?

Well water is taken from underground, that is, groundwater. Generally speaking, this water has a lower temperature, does not contain much algae, plankton and other impurities, and contains some minerals. This is the overall situation of well water.

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If you use this kind of water to raise fish, you need to adjust the water temperature and water quality. First, expose the well water to the sun for two to three days to raise the temperature. You can also add some hot water as appropriate. At the same time, stir the well water to increase the oxygen content.

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While drying, you can add some liquid such as apple juice, grape juice or vinegar to the water, which can not only increase the nutrients in the water, but also improve the pH of the water.

04

After these adjustments, pour the well water into the fish tank, and then place some rocks, wood and other scenery in the tank according to your personal preferences. Keep this state and wait for about two to three days.

05

After waiting, place a few fish in the tank to see if they can adapt to this environment. Observe for one to two days, and then feed them. If there are no problems, you can raise our ornamental fish.

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Although the above steps are a bit cumbersome, some things really cannot be rushed. Only by being steady can you experience the joy of harvest.

8. What is the correct way to add water to fish farming?

The first thing to consider is of course the water source. Before adding water, test several indicators, including pH (preferably within the range of 7.5-8.5, too low or too high may be seriously polluted water), salinity (consistent with the salinity of the pond), hardness (above 50dh), etc. The total alkalinity is too volatile, so the test is not very meaningful (but it is very important to test after fertilizing the water, generally 60-120 is better).

Secondly, it is recommended to pump out more water (more than 1.2-1.5m, and drain 20-30cm of bottom water after disinfection). There is no particularly obvious fixed time period for water intake, but it is best to do it during the day, and try to use a large-inch pump (more than 6 inches). Since the water must be disinfected after intake, the bleaching powder commonly used in aquaculture will flocculate and settle after standing for two or three days, so it is best to drain 20-30cm of bottom water through the bottom sewage system or pumping system (especially after the seedlings are adapted, they will sink to the bottom. If this layer of bottom water is not drained, it will be detrimental to the normal growth of the seedlings and may even cause death). The most suitable water depth for seedlings is 0.8-1.2m, so to ensure that the water depth of 0.8-1.2m is still maintained after draining 20-30cm of water, it is necessary to ensure that a certain amount of water is taken in at the beginning.

Adding water in the middle and late stages of aquaculture should follow the principle of gradual progress. When adding water, the water source is more demanding, and the entire aquaculture area needs to be considered, including whether there is drainage pollution upstream and downstream to prevent cross infection; rainy weather, east wind, sultry weather, high tide period (usually the first and fifteenth day of the lunar calendar) and shrimp fry molting period are not suitable for adding water; do not add too much water at one time to prevent stress, and increase the amount of water added by 1-3 cm/day. If the water quality deteriorates, at least 50% of the water needs to be replaced, and it also needs to be increased gradually in several times. You can replace 5 cm for the first time, and then increase the amount of water change by 3-10 cm per day.

The water entering the pond must be disinfected, the bottom layer must be changed, and bacteria must be supplemented (EM bacteria is generally used). At the same time, amino acids should be appropriately supplemented to protect bacteria and algae. If conditions permit, calcium can be supplemented at 22:30-23:00 3 days before the water is added to prevent stress-induced molting.

Adding water during the breeding process is a good choice. First, adding fresh water will make the pond water more vibrant and less prone to aging, which can stabilize the water, especially in hot weather. Second, adding water also increases oxygen, which makes the shrimp more vibrant and more immune.

When adding water, you need to pay attention to the following five aspects: First, whether the external water is clean and whether there are many harmful algae; Second, whether the water quality of your own pond is suitable for adding water, such as if there are more cyanobacteria and dinoflagellates, the more water you add, the faster the harmful algae will reproduce; Third, whether the shrimp situation and weather are suitable for adding water. It is not advisable to add water during the wind turning period, medication period, molting period, and recovery period, so as to avoid the risk of adding unsterilized water sources; Fourth, you should be careful not to add too much water at one time to avoid changes in the water quality of the pond. If the water source is eutrophic, add water cautiously or add a small amount at night to avoid causing the pond water to be thick or harmful algae to rise; Fifth, after adding water, pay attention to the supplementation of calcium and magnesium and the disinfection of water quality. Then observe the changes in the shrimp (body color, vitality, and feeding situation) to respond accordingly, whether to stop adding water or add water after a few days.

In the early stage of aquaculture, water is usually added with disinfected fresh water (adding fresh water in the early stage will make the shrimp grow faster), and no water is added during the period of large-scale molting of shrimp. Secondly, in the middle and late stages of aquaculture, water is mostly added with disinfected salt water, which helps the shrimp to harden its shell and form meat. As the aquaculture time increases, the water level gradually deepens to meet the shrimp's demand for spatial distribution.

Strengthening water quality control is a necessary guarantee for obtaining high-quality and high-yield fish in the pond. Adding water to the fish pond is the most direct, effective and main measure to adjust the water quality of the fish pond. In order to achieve the ideal effect, the following points should be noted during the water addition process:

Add water as appropriate. Add water flexibly according to weather changes, temperature, water quality and other conditions. For breeding common fish, generally add water to the pond once every 10 days or so. If the weather is hot, the temperature is high, the water quality is too rich, or it is rainy or hot, the interval between adding water should be shortened.

Add water in the early morning. It is best to add water to the fish pond in the early morning. Because there is no light at night, the photosynthesis of phytoplankton in the pond water stops, and the breathing of various organisms in the water body still requires oxygen, which will drop to the lowest value at 3 to 5 in the morning. Therefore, choose to inject new water into the fish pond in the early morning, and the oxygenation effect is most obvious. It is generally not advisable to add water to the fish pond during the day, because the photosynthesis of phytoplankton in the pond water is vigorous during the day, and the dissolved oxygen in the water is sufficient. Injecting water at this time will not only fail to increase oxygen, but will cause the dissolved oxygen in the water to escape.

Add running water. The water injected into the fish pond must be fresh, pollution-free, with sufficient dissolved oxygen and a small temperature difference. Generally, the temperature difference of the fry pond should not exceed 2°C, and the temperature difference of the fingerling pond should not exceed 5°C. When pumping water, the upper layer of the water source should be pumped out. Generally, the pumping pipe should be inserted about 30 cm below the water surface. Such shallow water has low organic matter content, high dissolved oxygen content, and water temperature close to the pool water temperature. After being injected into the pond, it will be beneficial to the growth and development of fish.

The filling method should be appropriate. Before adding water, drain the original water from the bottom of the pond, then add new water, and filter the water inlet with a fine mesh to prevent wild fish and harmful organisms from entering the fish pond. When adding water, the new water should be flushed in along the upper horizontal line of the pond water, which can cause the upper water to stir and achieve the effect of increasing oxygen. Do not let the water flow from a high place to prevent the sediment and humus at the bottom of the pond from floating up and polluting the water quality.

Add water in appropriate amounts. Adding too little water will not achieve the purpose of adding water, while adding too much water will easily reduce the density of plankton in the water, thus affecting the feeding and growth of fish. Generally, the depth of each water addition should be 20 cm to 30 cm. When the pool is hypoxic or the pool water deteriorates, 1/2 to 1/3 of the original pool water should be released and new water should be added.

After the pond is injected with new water, the water quality often becomes less fertile and the water color becomes lighter, so fertilizers should be added in time and appropriately to cultivate plankton to keep the pond water "rich, active, tender and refreshing" and to make the transparency of the pond water reach about 30 cm, so as to ensure that the fish can grow healthily and quickly in an environment with abundant bait organisms and good water quality, so as to achieve the ideal effect.

9. What is the correct way to raise fish on the ground?

You can put a basin or a large bucket on the ground and put the fish in it.

10. What is the correct way to raise fish in tea water?

Tea leaves can be used to raise fish in water, but the amount must be controlled.

If you have green tea that has been stored for the summer at home, you can put a small handful of it in the filter cotton interlayer. Every time you clean the filter cotton, you can replace the waste tea. Of course, the frequency of adding tea can be controlled by yourself, as you like.

Of course, tea leaves will ferment water when they encounter bacteria in the water, which shows that there is always a downside to every benefit. This requires changing the water to improve the water quality. The benefits outweigh the downsides, and seeing your fish healthy and lively is the most important thing.

Tea contains tea polyphenols, which are good antioxidants and have bactericidal effects. It can gradually adjust the water environment and the internal organs of fish. Theophylline can enhance the water quality and make the acidity and alkalinity appropriate.