As a wild fisherman, I still want to answer this question. The question you asked is too general, so you have to analyze it before you answer it. 1. The size of the water area determines whether the fish in the water are strong. The larger the water area, the greater the fish&;s momentum, and vice versa. 2. Look at the water quality. The better the water quality, the stronger the fish will be. If the water suddenly turns muddy in case of rising water, maybe a small line can be caught. 3. See how long the pole is, whether there are obstacles in the water, whether it is possible to put the rope, and whether the fishing position is spacious and convenient for walking fish. 4, depending on the season and water depth, the fish strength will be larger in summer and autumn. Generally, wild fishing wants to catch more than 10 kg of carp. It is recommended to catch wild carp with a water depth of more than 4 meters (except for muddy water) and more than 5 kg. After fishing, it will generally not rush, but the stamina is particularly large, and it is difficult to unload the force at once. If it is wild fishing, it is recommended to use nylon thread no.3 or above as the sub-line in summer and autumn, no less than no.2 in winter and spring, and the main line is more than one size larger than the sub-line, but the probability of big fish in winter and spring will be very low.