Brocade scales jump out of the water and duckweeds emerge, and fish compete for food across the green belt. When fishing in the wild, if you want to catch fish, you must choose bait according to the food preferences of the fish. Fishing friends who like wild fishing want to find out what foods wild fish like to eat, and then use the fish’s favorite food to hook the hook. By dissecting the intestines and stomachs of fish, we can see what foods are most abundant in the stomachs of freshwater fish such as crucian carp, carp, grass, green carp, silver carp and bighead carp, etc., and then we can know what their staple food is.

1. The staple food of wild crucian carp

Crucian carp is an omnivorous fish. Although they eat both meat and vegetables, when we dissected a large number of crucian carps, we found that most of the food in their stomachs was plant debris. Mainly the leaves, buds, stems of aquatic plants, and a small amount of moss, all turn into debris after digestion in the digestive tract. Therefore, wild crucian carp is mainly vegetarian.

2. Staple food of wild carp

As we all know, wild carp like to eat grains such as corn, but we found through a large number of carp dissections that the main food in the carp's stomach is snails, river clams, small fish, shrimp and algae, which shows that wild carp mainly eat meat.

3. The staple food of wild grass carp

Grass carp is a typical vegetarian and mainly feeds on aquatic plants. The main food in the stomach of grass carp is aquatic plants, duckweed, algae and a lot of fish feces. Grass carp actually likes to eat feces, which may surprise many fishing friends. In fact, the number of lactobacilli in the intestinal tract of grass carp is very small and is not enough to support the digestion of food, so it increases the number of lactobacilli by eating feces.

4. Staple food of wild herring

Herring is also known as snail green. It can be seen that herring likes to eat snails very much. The most abundant food in the stomach of wild herring is indeed snails, followed by river clams, young clams and shrimps. Therefore, there is no problem in classifying herring as a carnivorous fish.

5. Staple food of wild silver carp and bighead carp

Silver carp and bighead carp are filter-feeding fish. They mainly filter plankton in the water through gill rakers. The main species in their intestines are rotifers, cladocerans, copepods and other zooplankton, as well as some phytoplankton, such as diatoms and cyanobacteria. This is completely consistent with the feeding habits of silver carp and bighead carp.

To sum up, these are the staple foods of several mainstream freshwater fish. One thing to note is that the food they usually eat the most is not necessarily the food they like to eat the most. For example, crucian carp usually eats the most vegetarian food, but they prefer to eat red worms and earthworms. Carp eats the most snails, but they prefer to eat corn. Herring also eats corn, and grass carp also eats earthworms. Therefore, the bait used for fishing must be flexible. When fishing in the wild, if a small amount of fragrant doba salt and fish afa can be added to the bait, the bait's predatory properties can be significantly improved and more fish can be caught.