What are the precautions for the feng shui layout of courtyard fish ponds?

Hello, matters needing attention in feng shui layout of courtyard fish ponds: ponds and fountains should be designed in perfect shapes with slightly protruding centers, which can increase the wealth of residents. The design water is shallow, and it should be slightly inclined to the residential building (the square faces forward). This design can hide the wind and gather gas, increase the good luck of residents, and have the hidden power to make a fortune. The shape cannot be designed as the shape of the basin supported by the arm. This design is unlucky in environmental science, and will cause eye diseases for residents, especially pregnant women. Can't be designed as a sewer, the water is deep. This design is called "lonely soup breast". This kind of pond is designed with deep water, which is easy for children to fall into the water and die. Moreover, the water quality is not clean, and it is easy to accumulate malodorous gases and suffer from lung disease. If it can't be designed into a gourd shape, "gourd" is a "doctor" in environmental science. If we use fountains, we should pay attention to details; Swimming pools and ponds are designed in gourd shape, which will bring unfortunate fate to residents and often go to hospitals. This design is suitable for doctors, fortune tellers and fortune tellers, and Yin and Yang Feng Shui is suitable for professionals to live in. Not suitable for the design of "golden shape". This kind of design will cause great fluctuations among residents, which is not suitable for living and working in peace and contentment. However, it is good for people who are engaged in the fluctuation industry to live. It is not suitable to design the "first quarter moon shape", which is called the "anti-bow golden shape" in design, and the arc is just facing the occupant's family, which will bring disharmony in family relations and poor fortune to the occupant.