What does "crucian carp land" mean in Feng Shui?

The Crucian Carp Land is a geomantic treasure, but there are only fish ovaries there, which symbolizes endless life and abundance every year. But once it is not in the position of the fish ovary, similar to the back of the fish, the head of the fish is not a feng shui treasure, and the tail of the fish is even a dangerous place. If the fish sways its tail, the whole family will not be able to rest in peace. Therefore, it is very important to build a house in the Feng Shui location of Crucian Carp Land.