Why can't fish ponds be built in hospitals? What's the impact?

This is a superstitious statement, and there is a feng shui statement. If you can't build a fish pond in the hospital, your family will lose money within one year. After three to five years, your family will get lung disease and esophageal cancer, and your family will run out of money. It's called breaking your heart. As long as the water breaks my heart, all the people at home are crying.

Requirements of intensive fish pond: ① Water source: the water quality should meet the fishery water quality standards, with no pollution and sufficient water. The water source should be close to the fish pond to facilitate water injection and drainage. ? ② Area: It should be between 20 and 30 mu. In the past, fish ponds were very small in area. With the continuous development of fish culture technology, the area of fish ponds has gradually increased. As the saying goes: "Wide water breeds big fish", the fish pond has a large area, large fish activity space and large water flow, which can play the role of increasing oxygen. ③ Water depth: 2 ~ 3m. ④ The dam of fish pond is firm, without flood disaster, and the soil has strong water retention. ⑤ The bottom of the pool is flat and the slope is gentle, which is convenient for fishing and pool cleaning. The thickness of silt shall not exceed10cm. Fish ponds should be rectangular. ⑥ Every fish pond needs power supply to ensure that all fish farming machines can be used normally during feeding.

Matters needing attention in fish pond culture?

First, strictly clear the pond. When digging a new fish pond or transforming an old one, it is necessary to ensure that the fish pond area is more than 2 mu and the water depth is more than 2 meters. The bottom of the pond requires good water retention, no leakage, sufficient water source, no pollution, good water quality and leeward and sunny. According to the principle of "changing a small pond into a big pond, a shallow pond into a deep pond, a dead pond into a living pond, and a leaking pond into a protective pond", the silt at the bottom of the old pond is removed every year, and the sediment is kept at 10- 15cm. After dredging, the fish pond should be exposed to the sun for several days. When the weather is good, the pond should be cleaned and disinfected with quicklime or bleaching powder.

Second, apply more fertilizer. In newly dug fish ponds, base fertilizer should be applied early before sowing to cultivate natural bait. The amount of fertilizer can be determined according to the bottom material, pond conditions and fertilizer types. Generally, after 5 days of disinfection, fish ponds are filled with water, and 400-600 kilograms of human and animal feces are applied to each mu, which is directly sprinkled on the bottom of the pond. After spring, the top dressing should be strengthened as soon as possible during the growth period of fingerlings, and chemical fertilizer can be applied, or biological fertilizer can be used for hydroponics according to the instructions.

The yard is so small that I have to raise fish ponds, so I won't raise fish ponds.