2. Blends with the terrace floor
Do not get hung up on the design of fish ponds in general, which focus on rectangular or circular shapes. Occasionally try designs with abstract shapes that blend into the terrace floor and follow the shape of the edges.
Because the surface of the water is parallel to the surface of the floor, add small bushes around the pool to prevent people from slipping. Make sure the fish pond design is equipped with spotlights or other types of lights to illuminate the boundary between the floor and pond.