vidaXL Volcanic Rocks - Lava Accent Rocks for Aquarium - 3-5 cm - Black - 10 kg

These volcanic lava rocks are 100% natural and safe for use in both freshwater and saltwater aquariums. They rest at the bottom of the tank to help create a captivating underwater landscape, with natural shapes that form a colorful focal feature. Beyond decoration, the rocks function as natural biological filters, contributing to cleaner water by improving quality, boosting oxygen levels, and helping control nitrates. Their robust composition makes them suitable for garden landscapes, planter beds, and other landscaping rock applications while remaining inert to water pH and chemistry.

Features

• Natural, 100% volcanic lava rocks

• Safe for fresh and saltwater environments
• Beautiful natural shaping for a focal feature
• Serve as natural biological filters for cleaner water
• Boost oxygen levels and help control nitrates
• Suitable for garden landscapes and landscaping rock uses

Technical specifications

• Colour: Black
• Material: Volcanic rock
• Size: 3-5 cm
• Weight: 10 kg