Choose a place with good water source, fresh water quality, no industrial pollution, good soil quality and convenient transportation to build a pool. The pool area is 5-20 mu, the water depth is 2.5-4 meters, the pool bottom is flat, the pond foundation is firm, the water retention performance is good, and the surrounding ventilation is not high. Sunblock. It is best not to build pig pens and three-bird sheds (chicken, duck, and goose sheds) on the pond base. If pig pens and three-bird sheds are indeed built, the animal feces cannot be directly discharged into the fish pond. Appropriate delivery at the right time.

Preparation before stocking
1. The whole pond, clear pond. The pond should be drained before stocking, exposed to the sun for more than 1 week, and the pond foundation should be repaired and strengthened during the drying period. For dry ponds and clear ponds, use quicklime 225 mg/L, or keep the pond water at 1 meter, and use 50 kg of tea bran for mu. Do not enter new water within three days after clearing the pond, so as not to affect the effect of clearing the pond.
2. Fertilize and cultivate water quality. About 7 days after the pond, when the toxicity of the drug disappears, use a 60-mesh silk screen to filter the influent water of 70 to 80 cm, and apply 300 to 400 kg of organic fertilizer per mu to cultivate phytoplankton bait. Gradually add water to 1 meter as the water becomes thicker. After bringing the seedlings into the pond, as the water temperature increases and the fish grow up, gradually add water to the maximum storage depth of the pond.