Crabs spend most of their time looking for food. They are not picky about food, and they can eat anything that their claws can get. Small fish and shrimp are their favorite, but some crabs eat seaweed, even animal carcasses or plants. If you are wild, you mainly eat some floating animals and plants. If you keep them yourself, you can feed them some aquatic plants or dried fish and worms. Crabs like a sandy environment. Don't forget to put more sand. The daily feeding amount of small crabs generally accounts for 3-4% of the crab's weight, and it is appropriate to eat them within1-2 hours. At the initial stage of stocking, the main species are fresh and fresh fish, snail meat, etc., and then gradually increase the amount of plant-based concentrated feed, such as wheat, corn, soybean meal, etc. In high temperature season, do not feed animal-based bait, less plant-based concentrated bait, and more green coarse feed, such as water grass, pumpkin, potato, etc., and enter the later stage of breeding, so as to promote the weight gain of river crabs. Pay attention to changing water. Crabs like eat small fish shrimps. Cut the small fish and shrimps and give them raw. Or wheat, corn kernels are cooked and fed to them. Raw corn kernels can be bought in large supermarkets, and a little purchase is enough. However, crabs generally like to eat fish and shrimp in winter. If there are no small fish, it is estimated that it is difficult to feed crabs and eat other animals. Other animals may also eat crabs. For example, humans regard crabs as delicacies. And waterfowl eat crabs! Some fish like to eat crab feet just like humans. When young and underage crabs float in the sea in groups, they may be wolfed down by other marine life, so crabs have to lay a lot of eggs when laying eggs. The eating habits of river crabs are very diverse. They eat both vegetarian and non-vegetarian, and like to eat animal foods such as fish, shrimp, snails, worms, earthworms, insects and their young. They also eat the same kind of animals that have been injured or just molted, and the crab with eggs takes eggs as food when it is hungry. In the natural environment, river crabs are easy to get mostly aquatic plants, so plant feeding is the main thing. Eriocheir sinensis is very gluttonous, eats a lot and has a strong digestive ability. When food is abundant, you can eat a lot, but when there is no food, you won't starve to death if you don't eat for a few days or even a month. This is because after you are full, you will store excess nutrients in your liver. How old is the newly shelled "soft-shelled crab" that is the pre-stored nutrition to maintain your life? My family also keeps a few small crabs, and the diameter of each shell is about 3~4 cm. I found in the data that crabs are omnivores, so what you said will happen. Our crabs eat rice, edamame and even noodles. However, it is said that the growth of crabs needs calcium, so it is best to feed some small fish and shrimp. But I didn't buy a small fish and shrimp suitable for it. Sometimes small earthworms are used instead. But it's more troublesome, and it's inhuman to the little earthworm. So I suggest you feed the shrimp skin, which is also very fond of eating. Try to be close to it when feeding, because in my experience, their vision is not very good. Don't disturb it to eat. If you raise more, try to find a bigger container. My little crabs often kill each other because the place is too small. Now every crab has a missing arm and a broken leg. . . Have a good time raising crabs. We should all be kind to animals.