Around the pond where loach is cultured, it needs to be 4 cm above the water surface, with a slope of 6℃~7℃, a depth of 8~1 cm and a water depth of 3~5 cm. Net, plastic plate or porcelain plate should be used as a fence around the pond to prevent snakes, mice and other enemies from entering the culture area. In addition, the water inlet and outlet are wrapped with 12-mesh net cloth to prevent loach from escaping, harmful organisms, wild fish eggs and fry from entering the pond.

2. Preparation before stocking

Before stocking loach, it is necessary to clean the pond. After the water depth reaches 1cm, it is necessary to make mud with quicklime, and then sprinkle water to disinfect the whole pond. Apply base fertilizer three days before stocking.

3. sow.

The time of coming to the pond in loach seedlings is May every year, and the planting density is 15-2 plants /m2. During the production of fry, attention should be paid to the water test before stocking to check whether the toxicity of water body is eliminated.

4. Feeding management

When the body length of loach seedlings is less than 2cm, topdressing can be applied appropriately according to the water regime. Top dressing can use fermented farm manure such as pig, cow, chicken and human excrement, and sprinkle it once every morning and evening. When the loach grows to 2cm, deepen the water level to 5cm, fertilize the water quality, and feed it once every morning and evening. The water quality of loach culture is very important. In addition to changing the water once or twice a week, it is necessary to apply fertilizer frequently to keep the water yellow-green.