How to keep fish in stagnant water

If there are people who have knowledge of rural areas, then it is relatively clear that there are a lot of stagnant fish ponds in rural areas. So how do farmers use these stagnant fish ponds? How can fish be raised in stagnant fish ponds? What kind of fish is suitable for raising? Now let's take a look at it together.

1. Silt cleaning

There is a lot of silt in stagnant fish ponds, so if you want to make use of stagnant fish ponds, the workload is also relatively large. Every year, after the big fish is sold, the silt in the pond needs to be cleaned thoroughly so that it can be restocked the following year. If the excess silt is not cleared out, there will be a large number of deaths in the next year. In general, the depth of silt in fish ponds can not be more than 15 centimeters, at the same time, in the usual pattern process, there is too much silt in fish ponds, it is necessary to discharge silt in time.

2. Disinfection of fish ponds

Backwater fish ponds in rural areas are generally harvested only once a year, that is, before the Spring Festival every year, the price level is relatively high, and the fish out of the pond can be sold at a good price. Then this time, it is necessary to discharge all the stagnant water from the fish pond, clean up the mud and then disinfect and bask in the pond. The time of disinfection is generally about a week, and the common way of disinfection is to add an appropriate amount of quicklime to the pond.

3. Irrigating and raising fish

After disinfection and play, you can pour clean, pollution-free water into the fish ponds for breeding. Then it is necessary to control the density of fish culture in backwater fish ponds, and the density should not be too high or too low. If the density is too high, there is not enough oxygen in the fish pond, which will cause death due to lack of oxygen, and if the density is too low, of course you can't make money. The most important thing is to observe the changes of water quality and change the water in time.

4. Fish selection

There are also requirements for the types of fish raised in stagnant fish ponds. After all, the culture conditions are not up to standard, many fish species can not be cultured, otherwise the loss is very large, so it is necessary to select suitable fish species suitable for local stagnant fish ponds before culture. Generally like catfish, bighead carp, carp, crucian carp, grass carp and other more common fish can be farmed. It is best to adopt multi-variety mixed culture, which can also play the effect of water quality regulation.

5. Points for attention

There are more things to pay attention to when raising fish in backwater fish ponds. Fish culture in stagnant fish ponds often suffer from hypoxia, so if there are conditions, oxygen enhancers or oxygen supplying machines can be added to the fish ponds. The water quality in stagnant fish ponds is also a serious problem, so we should pay attention to changing water frequently and plant some duckweed and other aquatic plants in the ponds, so as to purify the water quality.

The above is the whole content of fish culture in stagnant fish ponds sorted out by the editor. I believe you also have a general understanding of how to cultivate fish in stagnant fish ponds. Backwater fish ponds are consistent with live water aquaculture, but they will be cumbersome in daily management and require a lot of patience. If you want to know more about aquaculture, remember to follow us.