1. Location selection: Choose a place with sufficient water sources, pollution-free water quality, and convenient transportation and power supply to build the pool.

2. Water source and water quality: A good water source facilitates frequent addition of new water to prevent fish from dying due to deterioration of water quality and lack of oxygen; it is also conducive to the growth of plankton and improves the living conditions of fish. The best water sources for ponds are river water and reservoir water.

3. Moderate area: 3-5 acres is suitable for fry and fingerling ponds, and 8-10 acres is suitable for adult fish ponds. The large area is suitable for the biological requirements of fish, and the fish have a wide range of activities. The water surface is wide and is greatly affected by the wind, which can automatically add oxygen to the pool. There is a saying in fishing proverb that “wide water raises big fish”.

4. Moderate water depth: The water depth of the pond should be 1-1.5 meters for the fry pond, 1.5-2 meters for the fingerling pond, and 2-3 meters for the adult fish pond. With such water depth, the water quality is not prone to drastic changes, which can increase the fish carrying capacity of the water body and increase production and efficiency.

5. Good soil quality: The soil quality of the fish pond must have good water retention. Generally, loam is the best, followed by clay, and sandy soil is the worst.

6. Pond design: The appropriate shape of the pond is a rectangle with an east-west length and a north-south width. The best length-to-width ratio is 5:3. Such a pool shape has little shading on the bank and long sunshine, which is conducive to photosynthesis of phytoplankton, as well as feeding management and net operation. The bottom of the pond is in the shape of a turtle's back, and the entire bottom of the pond slopes toward the water outlet, which is conducive to drainage and fishing. The area around the pond should be open, and it is best to plant fodder grass on the pond ridge. It is not advisable to plant tall trees so as not to block sunlight and wind.

A fish pond refers to a place for fishing or raising fish, specifically the internal compartments of a fish pond or the seine net used to trap fish. Generally speaking, an ideal pond requires a large area, deep water, sufficient light, smooth water source, fertile water quality, and convenient transportation, so as to facilitate the growth of fish, increase production, and facilitate production management.

The following conditions should be met:

1. Area and water depth. The size and depth of the pond are closely related to the level of fish production. Production practice has proved that the appropriate area of ??the adult fish pond is 4-10 acres, and the best water depth is 2-3 meters. The area of ??the fish pond can be less than 5 acres, and the water depth is about 1.5 meters.

2. Soil quality and substrate. Most fish ponds are built by digging soil, and soil quality has a great impact on water quality. The soil quality of the pond is best with black soil, followed by clay, and sandy soil is the worst.

After a period of fish farming in the pond, a thick layer of silt gradually forms at the bottom of the pond. This is the continuous deposition of remaining feed, fertilizer, fish feces and dead organisms, which is combined with the mud and sand at the bottom of the pond. Mixed. There is a certain amount of silt in the pond, and the pond water can easily become fertilized, which is conducive to fish farming and high yields. However, excessive silt will worsen water quality, affect the growth of fish, and even cause fish death. Therefore, excessive silt must be removed in time to maintain good water quality.

3. Water source and water quality. Good water quality requires sufficient dissolved oxygen, moderate acid-base (PH value 7-8.5), good water temperature (preferably 25-30°C), rich nutrients, and relatively fat water quality (water color is mung bean, yellow-green, yellow-brown) Light soy sauce color, transparency 25-30cm), no toxic substances.

4. The shape and direction of the pond. The shape of the pond is preferably rectangular. The length-to-width ratio is 2-3:1, and the wide side length is 30-50 meters to facilitate management and fishing. The direction of the pond is east-west, which is conducive to extending the sunshine time, which is good for plankton in the water and increasing dissolved oxygen. There should be no mountains or tall trees around the pond to block light and wind.