vidaXL Black Volcanic Rocks 10kg Natural Decorative Lava for Aquariums, Fish Tanks, Gardens and Landscaping

Amazon

【Decorative Element】: Incredibly detailed and vibrant, these lava rocks add a stunning colour and textural contrast to your fish tank 【Biological Filter Function】: Acts as an excellent biological filter, improving water quality, boosting oxygen levels and controlling nitrates for a healthier aquatic habitat 【Versatile Use】: Not only for underwater habitats, these black volcanic rocks are also perfect for use in garden landscapes, planter beds and other landscaping rock applications 【Product Specifications】: Weighing 10 kg with sizes ranging from 10 to 30 cm, these black volcanic rocks from the brand vidaXL are sure to make a striking impression 【Natural Material】: Beautiful black volcanic rocks composed of 100% natural and environment-friendly components, suitable for both saltwater and fresh water aquarium environments

VidaXL

The volcanic rocks are a perfect addition to the bottom of your fish tank or aquarium, helping you create a beautiful underwater world! Natural material: The volcanic lava rocks are 100% natural and safe which won’t affect water's pH or chemistry and are suitable for both fresh and saltwater environments.Decoration: With beautiful natural shaping, the lava rocks provide a colourful and detailed focal feature to your fish tank or aquarium.Biological filter: These volcanic stones make for great natural biological filters that improve water quality, boost oxygen levels, and control nitrates for a cleaner and healthier habitat.Wide applications: The volcanic rocks are also suitable for garden landscapes, planter beds, and other landscaping rock applications.