Aquascape MEDIUM TUMBLED LAVA STONE - 25 LB / 11.3 KG

Aquascape Medium Tumbled Lava Stone delivers superior water filtration and beneficial bacterial colonization for pond and water garden systems. The tumbled finish prevents sharp edges that could damage liners or harm aquatic life. This 25 lb bag provides excellent mechanical and biological filtration media, ideal for use in skimmers, filters, and bottom drains. Lava stone's porous structure maximizes surface area for beneficial bacteria growth, promoting a healthier ecosystem. Perfect for both new installations and filter maintenance in residential and commercial water features.