For shrimp culture and high-density culture, it is recommended to install 5-8 boards per mu.
If four big fish are cultured, it is ok to pack 3-5 plates per mu for ordinary culture.
If there are other aerators, impeller aerators or waterwheel aerators, the number can be reduced by 2-3 discs/mu.
I have a greenhouse pond with an area of about 1.5 mu in winter. The customer installed 20 aeration trays with different effects, with a diameter of 60 cm.