Bullfrog is an alien invasive species, and a large number of breeding will cause serious threats and damage to the ecological balance. The direct discharge of bullfrog excrement and sewage without effective treatment will seriously damage the soil and water body and pollute the ecological environment. In the process of breeding bullfrogs, because bullfrogs breed intensively, it is inevitable that bullfrogs will have diseased bodies. However, these diseases have serious pollution to water pollution and natural environment. These abandoned bullfrog diseased bodies have an impact on the surrounding soil and cultivated land. Especially in summer, the smell is very strong and unpleasant, which affects the air quality.

When feeding bullfrogs, food competition is common. Those small bullfrogs often can't grab food, so long-term competition will easily lead to the death of young bullfrogs. Therefore, when breeding bullfrogs, we must screen them regularly and breed them separately.