vidaXL Black Volcanic Lava Rocks - Natural Decorative Accent Stones for Aquariums, Fish Tanks, Gardens, and Landscape Design - 10kg

The volcanic rocks are a perfect addition to the bottom of your fish tank or aquarium, helping you create a beautiful underwater world! Features: 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 grea... - Manufacturers part number: 3217182

• 【Fish tank decor】: These black lava rocks are an excellent addition to create a vibrant and colorful underwater world in your aquariu
• 【Product Specifications】: The black volcanic rocks measure 3-5 cm in size and weigh 10 k
• 【Natural and Safe】: These volcanic rocks are 100% natural and safe which does not disturb the pH or chemistry of the wate
• 【Multiple Uses】: Apart from aquariums, these rocks can also be used for garden landscapes, planter beds, and other landscaping application
• 【Biological Filter】: These rocks improve water quality, enhance oxygen levels and control nitrates, providing a cleaner and healthier habita