Pay attention to the distance between the pond and the house, and avoid the pond water reflecting into the house, resulting in a "blood basin mirror".
Personally, I think the size of the swimming pool should be coordinated with the residence. Too big or too small may look unsightly.
Living water is better than stagnant water. The so-called living water is to plant lotus flowers and fish in the pool. Planting duckweed can solve the evil of feng shui of "blood basin looking in the mirror"
Fish has been regarded as an auspicious thing since ancient times, because its "fish" and "fish" are homophonic.
Fish should have one tail, four tails, Vulpix, eight tails and Kyubi no Youko.
Black or white is better for fish, because black belongs to water and white belongs to gold.
It is best for fish to be easy to raise, resistant to living and not violent, such as common carp and brocade fish.
It is best to build a pond around the house that conforms to the layout of residential feng shui, so as to achieve "flourishing mountains and flourishing waters" instead of "going up the mountain and launching into the water".
In order to prevent the pool water from turning green, one third of the pool surface should be covered with aquatic plants, such as fountain pens, lotus flowers and daffodils. If the fish pond is located in the shade, or there are waterfalls and splashes for landscaping, you should choose aquatic plants with strong shade tolerance, such as plantain, daffodils and rushes.
It is also auspicious to put sculptures of cranes, egrets, frogs and turtles in fish ponds or near ponds. Cranes represent longevity, and three-legged toads have the function of making money. Placing a small tower on the rock landscape in the northeast or southwest of the fish pond can ward off evil spirits.