This product serves multiple functions in aquarium settings. It beautifies the aquarium environment, making it much closer to nature. It also provides a scratching surface for fish. When fish excrete in the water, the feces and turbidity settle between the sand and stones and won't be stirred up by the swimming fish. It's versatile and can be used in fresh and salt - water aquariums, ponds, terrariums, gardens, potted plants, vases, ash trays, and for crafts and hobbies. The product is of high quality, with its size, texture, and color being 100% natural. It's important to note that it should be washed with water before use, without adding any chemical cleaning agents.