The Feng Shui pebbles are intended to harmonise our living and working space using different colors to invite beneficial energies into our home. Clean, flowing, well-lit water with fish is the ultimate way of transforming bad energy and Feng Shui pebbles are designed to decorate your aquarium as well as promote the flow of positive energy. They come in a range of solid marble colours which deepen and shine once placed in water. Marble is a hard stone which won't cloud the water or harm your fish.