1, first of all, we should pay attention to filtration in plastic bucket fish culture, because it is impossible to put filters in it and aquatic plants are rare, so we should change the water regularly, pump water from the bottom of the bucket, and then replenish new water from the bucket wall.

2. In addition, we should also pay attention to clean up the algae in the plastic bucket, so as to avoid lack of oxygen after mass breeding and affect the breathing of fish. We can raise some fish or shrimp that eat algae.