However, rice is clean. Although crayfish are omnivorous, the density of crayfish is generally high, so it is necessary to keep the water clean. For example, you can't have too much oil. If you get too much oil and throw it in the pond, it will do harm to the water body. You will find that an oil film will form on the water surface, which is very harmful to the water body.

Feed in a fixed place, preferably with a food table. Crayfish with head and tail meal will also affect the water body if it is not finished in time. If there is a food table, you can better observe the feeding situation of crayfish, and don't throw too much.

Control the amount of rice, feed it once or twice a day, and check whether it is finished in three to five hours, whichever is just right. Don't throw too much rice, not only the water is not delicious, but also prawns are difficult to raise without good water. You don't just want to feed it, you should feed it regularly every day, depending on the weather and water temperature. When the weather is too hot, or when there is a plague in May, throw less if you can, or don't throw it. Remember to change the bottom of rice once a week to ensure the normal water body.

Domestic crayfish can also feed dead fish and shrimp, animal offal, earthworms, animal leftovers, bean cakes, bran, rice bran, rice and vegetables.