The reason why the crab appeared and ran away

In the process of breeding, crabs will escape from the original waters and tend to a suitable environment because of the increase of dirt in the water, the decrease of the pH value of the water, the high water temperature in summer and the low water temperature in winter.

In the case of artificial breeding, due to untimely feeding, it may cause crabs to escape because of hunger, such as looking for food.

Crabs are sensitive to the stimulation of light and water. At night, when the crab sees the light, it will run away. Adult crabs will go down and drift with the current; young crabs will go up against the current.

In the waters, the number of crab eaters such as rats and shrimp stings increases, and when livestock and poultry are harassed and caught artificially, crabs will naturally escape and tend to a safe place.