Description Our black volcanic rock is a unique addition to any aquarium, offering a porous design that ensures excellent aeration. This promotes a healthy environment for your fish, enhancing their growth and well-being. The natural texture of the rock adds a beautiful, organic touch to your tank, creating a stunning aquatic landscape. Features -Color:Multi -Material:Volcanic rock -Size:3.50X3.50X2.50cm/1.38X1.38X0.98in -Porous structure: the lava rock features a highly porous structure, making it ideal for aquarium and garden landscaping by promoting better water and air circulation -Natural aesthetic: these volcanic stones add a unique and rustic aesthetic to any fish tank, garden, or decorative vase, enhancing the overall visual appeal -Versatile use: suitable for use in aquariums, fire pits, garden landscaping, and as decorative rocks for vases, these stones are incredibly versatile and multifunctional -Plant health: the porous nature of the lava rock, making it an excellent choice for succulent gravel and plant growth -Widely used in homes and other places:natural volcanic rocks are great in soil to retain the moisture of plants and animals and raise garden bed, suitable for water gardens, patios and ponds. It is also a great addition to cover the unseemly pipes and tubes, even as a base layer underneath fire glass or mixing with glass togetherPackage list: 1 x bag(150g) lava rock