Dymax Green Dragon Rock (Seiryu) is the most popular type of natural rock used in aquarium landscaping. It produces a distinctive, solid texture, rich in gray tones and irregular shapes with occasional white veins. The complex, sharp forms of these metamorphic rocks evoke the textures of a large, bare, rocky mountain. A certain harmony in the direction of the veins and shapes of each rock makes it easy to combine them to create natural inspired landscapes, such as Iwagumi Aquascapes. It comes in a package with a unique selection of pieces with harmonious volumes and shapes, perfect for assembling a beautiful aquascape for different aquarium sizes. DM148Scape up to 80L Contains Approximately 9 Rocks in Total (5 x 0.1-0.3kg; 3×0.8-1.2kg and 1×2.5-3.0kg) Approximate Weight 8kg Each rock is unique and its appearance may vary. Rinse each rock before placing it into the aquarium. Watch Matthew Manes use the Dymax Rock Scaping Kit to create a stunning aquascape