It may be that earthworms are not fresh enough to maintain their activity in the water, or there may be too many small miscellaneous fish in the water. Small miscellaneous fish are attracted by earthworms one step faster than big fish, or the fishing position is not deep enough and there are not many big fish. Why can't earthworms catch big fish? If there are more small miscellaneous fish than big fish in a water area, they basically catch small miscellaneous fish, because earthworms are more attractive to small fish.
Big fish generally live in deep water. It is difficult to catch big fish in places with insufficient water depth.
If you want to catch fish, the choice of location is very important. If it is spring, it is recommended to choose a place with shallow water and flat terrain. If it is winter, it is recommended to choose a place that is sheltered and sunny. （WeiShenMeQiuYinDiaoBuDaoDaYu）