CATDOLL : CATDOLL: How to learn the techniques of fish farming in fish ponds?

This is actually easy to say, but it is a bit difficult to do. It is not difficult, but it is very troublesome.

First of all, you need to go through some procedures related to the land and understand the nature of land use. You are definitely not allowed to dig holes on arable land casually.

When digging a hole, it is best to find a professional to operate the excavator. It will be used for fishing in the future, so it is best to have a flat bottom, with one side higher than the other, so that it will be convenient to drain the water later.

I don't know the size, but in theory, the bigger the better. As for the depth, under normal circumstances (I'm only talking about fishing, I don't know much about fish farming), the distance from the shore to the bottom of the water should be about 2 meters. After the water is stored, the water level should be maintained at 1.5-1.8 meters, which is more suitable for fishing.

After digging, make the water inlet and outlet. It is best to consult professional civil or engineering people for the best planning.

After digging the pit, the hardening work must be done well, otherwise the water will disappear in a few days. The shore must also be reinforced, otherwise it will collapse after being soaked in water for a long time.

Logically speaking, you certainly won't use tap water. The most likely way to store water is to use groundwater and river water. But just like raising fish with tap water, you need to raise the water first. After storing water, don't rush to release the fish. Let the water sit for a while. How long exactly depends on the specific situation, so it's hard to say in general. But during this period, you have to keep an eye on the water conditions, such as water temperature (to see if it's suitable for raising fish in your area in the future), pH value, microorganisms, algae, viruses, bacteria and other messy things. Disinfect when necessary, remove algae when necessary.

Relatively speaking, algae are more critical. The content of various algae should be able to enrich the water with oxygen through photosynthesis, but not compete with fish for oxygen.

After the water is well maintained, you just need to wait to release the fish, but before that, you must first install the "oxygenation equipment". In waters with relatively high density, there must be oxygenation equipment, otherwise the fish will be hard to catch due to lack of oxygen at best, or even suffocate to death.

The fish have been released, but they should be released in batches, not all at once. Firstly, if a large number of fish are released into the new waters at the same time, they may not adapt well. Secondly, it is too expensive. At the same time, what if the fish have infectious diseases? Therefore, every time the fish are released, epidemic prevention and disinfection must be done well.

Of course, let's not discuss here whether you are releasing fry to grow bigger, as I don't know anything about breeding.

In terms of fish species, if you want to fish well and worry less in the future, you must put in more fish species (think of it as three-dimensional farming). If you are in a temperate zone (not the northeast or southern tropical zone), you should at least put in:

1. Crucian carp: cheap and abundant, the main species for fishing, can be fished all year round, how cool. You can also use engineered crucian carp without fertility, so that they don't naturally breed too many small fish

2. Carp: It is also very cheap and can be fished all year round. You can also buy a lot of "big fish". The key is to have strength. It is very satisfying to catch a big carp.

3. Grass carp: Grass carp is not a bottom-dwelling fish. It is very interesting to fish in the mid-water. The big grass carp is very powerful and it feels so good to fish. In addition, rotten vegetable leaves are usually thrown into the water to feed the fish.

4. Black carp: Similar to grass carp, but... you can buy very big ones... For example, a 20-jin black carp... It's great to catch it, but be prepared for the rod to break. It is said (not verified) that if the water is infected with golden apple snails, black carp can help eat a lot of them, I don't know if it's true or not

5. Silver carp and bighead carp: Please note that silver carp and bighead carp are two kinds of fish, which are called "silver carp" and "bighead carp" in the south. They are not the main fish species (of course, no one will stop you if you want to fish, mainly for ordinary anglers, silver carp and bighead carp are boring to fish with hand rods), but they are very important to ponds. Silver carp eats phytoplankton, and bighead carp eats plankton (this is not accurate, but it is roughly the meaning, I won't explain it). They play a very important role in daily water purification. Generally, fish ponds will raise a certain amount of silver carp and bighead carp.

The above are the fish that should be released under normal circumstances. The following fish species can be considered

1. Catfish: Catfish are not dirty, they have an important function. As mentioned above, if you put so many fish in the water, if they are free to fall in love, there will be more and more small fish. Fighting for living space is a small matter, but it is annoying to have small fish disturbing the nest every day. Catfish eat meat, so let them eat small fish as much as they want.

2. Forktail tuna: It has the same function as catfish, and the meat of forktail tuna is delicious and has few bones. It is called "suobian fish" in Sichuan. It is one of the important varieties of cold pot fish. You know.

3. Mandarin fish: It is difficult to survive, expensive, and can eat small fish, but it can be used to improve life.

4. Bass: They can also eat small fish. If you are tired of fishing on the platform, you can also try lure fishing.

5. Yellow catfish: It is used to enrich the fishing species, it is fun. Be careful not to prick your hands

6. Tilapia: The southern tropical regions should consider releasing tilapia. Why? Fishing is fun, but be careful.

70,000 fish (or other creatures) not to be released:

1. Red-eared slider turtles: They will attack fish, causing them to get injured, infected, or die. They also cause trouble in their nests.

2. Scavenger: Actually, it is nothing, but I am afraid that it will escape into natural waters and affect the ecological balance of a region. This thing is an alien invasive species

3. Crabs: Never release crabs, never release crabs, never release crabs. Normally they may disturb the nest and damage the lines, but once they make holes and break the dam, you will know the power of crabs.

4. Koi: It is said (note: it is said) that catching a koi may bring bad luck. Because koi is a symbol of good luck.

5. Alligator snapping turtle: No need to explain... a highly destructive invasive species

6. Loach: I don’t know why, but many fish ponds are very taboo about it.

7. Eel: Same as above

8. Crayfish: Same as crab

9. Snails: You can't tell the difference between local field snails and golden apple snails, and it also inexplicably increases the risk of water parasites. So even if you raise black carp, it is not recommended to use snails to fish.

After releasing so many fish, you should take good care of them. After all, they are the source of happiness in your fish pond.

Oxygenate on time every day. The fish ponds around me that I use for fishing are generally oxygenated in the early morning or afternoon, or in particularly hot and low-pressure weather, to make the fish bite and be energetic.

Feed them on time every day. Don't let these elves go hungry, and don't let them be too full.

Disinfect and sterilize regularly to prevent them from getting sick.

If you find fish in bad condition, you must catch them immediately and don't let them die in the water. At the same time, find out the cause of death, otherwise the water will stink and they will be inedible. If you catch them before they die, they will still be fresh to eat. Don't waste them. Of course, if they died of disease (especially parasites), don't eat them.

I can only think of so much at the moment, and other friends are welcome to add and correct me

1. Clean the pond. 2. Stock the fish. 3. Adjust the water. 4. Feed the fish. 5. Prevent diseases. 6. Raise the fish.

These six points are based on each time period of fish farming.

1. Clean the pond.

If the pond has not been dried for more than two years, it is recommended to dry the pond first and then expose it to the sun for half a month. The sun exposure is usually in March. The mud at the bottom of the pond should be exposed to the sun until it cracks, but not to the extent of turning white. Then add 30cm of water and use 80-120 catties of lime per mu to disinfect the entire pond. (Strong chlorine can also be used, but the effect is not as good as lime.) Add water 5-7 days after disinfection. It is best to add river water. If conditions are not available, you can add well water. The water depth should be 1.2 meters.

2. Plant the seedlings.

Choose high-quality seedlings, especially for grass carp. Before stocking, the seedlings need to be disinfected with copper sulfate or potassium permanganate. This can not only disinfect but also prevent insect diseases of grass carp in the later stage, especially anchor fleas. After stocking the seedlings into the pond, a batch of fry will die due to transportation, which is normal.

3. Adjust the water.

When breeding at a high density, the fry need sufficient food in the water. During this period, the water needs to be fertilized with Bacillus and photosynthetic bacteria to allow microorganisms and edible insects to reproduce. In this way, the fish will have food, and because of the large-scale reproduction of microorganisms and edible insects, the reproduction of harmful bacteria and harmful insects will also be inhibited (different bacteria and insects compete for space and inhibit each other).

4. Add good materials.

Choose high-quality feed for feeding. I won’t go into details here.

The small area of ​​the questioner should be ecologically farmed. For ecological farming, feeding should start in March. During this period, you can feed ryegrass. But be careful not to cut old ryegrass, because the intestinal wall of the fry is very thin after wintering, which is easy to cause enteritis. Don't feed overnight grass, that is, the grass is not eaten up, and it needs to be picked up at night.

5. Prevent diseases.

The main cause of fish disease is related to water quality. Here we are talking about preventing disease, not curing it. Because fish disease is a very big subject.

In the early stage of fish farming, the main thing is to adjust the water, kill insects and disinfect. The main thing is to adjust the water. In March and April, kill insects twice and disinfect once. Two insects and one bacteria. Use trichlorfon + copper sulfate for killing insects. Use powdered chlorine dioxide for disinfection. Disease prevention cannot be explained in one or two sentences, so I won’t go into details here.

6. Raise fish well.

This is the final expectation of breeding. Here are some experiences of fish breeding. For example: do not add water during the day in spring. Add no more than 10cm of water at a time. This is a big academic issue.