Black Mountain Seiryu is the darker, more intense cousin of the iconic Seiryu Stone. Prized for its deep charcoal-grey tones, this natural stone offers a moodier, high-contrast alternative to the traditional light grey variety. The signature craggy texture and endless natural details in these stones allow any hobbyist to recreate the complexity of a weathered mountain range. This natural rock is a perfect pick for aquascaping and Iwagumi layouts, as its sharp edges and white mineral veining provide a dramatic backdrop for vibrant green aquatic plants. Black Mountain Seiryu is also suitable for non-aquarium use and will work beautifully as a sophisticated accent in terrariums, paludariums, or similar enclosures. Stones vary in shape, size, and density. Pieces from packages will range from 3-10 inches. Notes: Seiryu may slightly raise pH and water hardness. Controsoil can help balance that out. If you are looking for larger stones, a minimum weight may be required. Larger stones = higher weight. Email our team if you need assistance. We recommend rinsing stones thoroughly before use to remove any natural dust or sediment. Stone coloration darkens when wet.
