- High-Quality Material: Our stone wool is an effective hydroponic product made from premium basalt and chalk fibers, compressed into blocks. Its soft and uniform texture ensures excellent water absorption and strong breathability, promoting balanced and rapid root system growth. - Easy Planting: Stone wool blocks can be used as whole sheets or cut into separate pieces. We recommend wearing gloves and using scissors for cutting instead of tearing by hand. With its high water retention, the blocks allow seeds to fully absorb nutrients and develop robust roots, resulting in a high transplant survival rate. - Optimal Usage: Soak the garden cube in nutrient solution for about 10 seconds, adjusting the pH to around 5.5. Monitor water, light, and temperature based on your plants to enhance seed germination rates. Transplanting can occur when the root system has penetrated the stone wool block by approximately 1.3-2.5 cm. - Wide Applications: These stone wool starter plugs are ideal for hydroponics, seed initiation, root development, plant propagation, cloning systems, and more. They enhance seed germination beyond traditional soil methods, making them suitable for both plant enthusiasts and commercial growers. - Performance Attributes: Designed for compatibility with various plants, our stone wool blocks offer a superior environment for seed growth, ensuring strong and healthy plants. Each block is crafted to support optimal moisture levels and airflow, resulting in healthier root systems and vigorous growth.