Works as an amazing drainage layer as well as substrate layer
Very Porous which helps in plants to root faster and beneficial bacteria to thrive
Rinse with water once before using
Lava chips are used for better aeration of soil, drainage, water retention, pH neutral, Provides trace elements to plants, some include: Manganese, Cadmium, Copper, Aluminum, Calcium, Magnesium, Zinc, and Iron. These trace elements are essential to take full advantage of the nutrients you feed them .
Size: 2-4 mm