【Like Back in Nature’s River】The unique form, textures, and underwater color change of the large aquarium rocks give your fish the feeling of being deep in the river, 100% enhancing the beauty of your aquarium.
【Safety】No resin, no plastic, chemistry stable. Our aquarium rocks are carved from quality materials that do not contain plastics or nasties and do not affect the water quality, do not change the pH or water chemistry, safe for your fish and live plants.
【Unique Texture, Color & Shape】Size: 8.3*6.3*3.3in. The aquarium stone color is naturally gray, black and white, and the color will be darker in humid environments. The hollow design in the middle allows small fish to freely shuttle through your landscaping, adding a sense of beauty and reality to your creation.

【Natural Material】Pure natural materials carefully selected and cleaned by hand. Each piece is unique. It has a rounded shape, with pores of different sizes and degrees of roughness on the surface, adding a peaceful and natural atmosphere to your aquarium. Black/white/gray mixed color, with black and white dots of sand-like texture, and the same color schema as the ancient Chinese symbol of Taiji, hence the name TAIJI Stone.
【Versatile Application】As the name suggests the unity and harmony of nature, Taiji Stone has a wide range of applicability in aquascaping, such as natural aquarium style, natural style for biopools, side stones for rock and seawater aquascaping, and planted landscapes. The surface has varying degrees of roughness, making it a great base for moss-covered rocks, which can be laid horizontally in a large tank as a substrate cover to simulate a riverbed, hill or rock formation.
【Increase Ornamental】Mixed sizes from 2-9 inches allow for flexible placement to obtain a natural and playful effect, giving your aquarium a more scenic and three-dimensional feel. Taiji stones will have a darker color in wet environments, easily contrasting with the color of aquatic life and highlighting the color and form of the aquatic environment you create. The rounded shape can add a soft and warm feeling to the aquarium; try adding some Chinese elements to give it a traditional in flavor.