1 Crabs are omnivorous animals. If possible, they can feed red nematodes and chicken yolks. Of course, crabs can also eat the internal organs of chickens and ducks or fish and shrimp. At the same time, feed some grass food. Pay attention to the amount of food you eat, and finish it within half an hour, otherwise the rest of the food will pollute the raised water;

2. Keep a medicinal basin at home. You can put some fine sand in the basin to form a small platform. The feeding water should not be too deep. The best water depth is that the water steel is soaked in the crab shell, and the feeding water can be tap water, but it can only be used after a day of sun exposure.

3, crabs can bask in the sun, but not for too long;

4. The feeding intensity of crabs increases or decreases with the change of seasons and water temperature. In summer and autumn, when the water temperature rises above 15℃, the crab's feeding ability is enhanced, so it is fed once a day. When the water temperature drops below 15℃, the feeding ability of crabs decreases, and they can be fed once every other day or several days. Feeding time should be around the evening, because crabs are aquatic animals that lie in the daytime and come out at night.

5, crabs are gregarious animals, it is best to raise several crabs together, so the survival rate is relatively high;

6. When cleaning the crab, hold the crab by hand, and then brush it with a toothbrush dipped in shower gel or soap, especially in the dead corner, pulling its feet (don't brush too hard). Wash the fish tank with water after bathing, and sprinkle some salt occasionally, mainly to prevent infectious diseases;

7. The crab has just arrived in a strange environment, and its temper is very stubborn. If you starve it for a few days, use tweezers to make a delicious one, shake it in front of its mouth, and then you will see its voracious appearance.