What is the best size to make a wind pool within 2 meters in front of the house?

Make a wind pool within 2 meters in front of the house. Generally, the surface area of fish ponds should be 3-4 square meters, with a maximum of 5 square meters. The depth of the pond is limited to 1m, the underground part is about 70cm, and the ground height is 30cm. This can limit the garden debris and accumulated water from entering the fish pond, causing the pond water to be turbid, which is not good for fish farming.