Delta Rockwool cubes are premium, sterile hydroponic growing media made from spun basalt and chalk, designed for superior plant propagation, rooting, and uniform growth. They offer an ideal air-to-water balance.

Key Features of Delta Cubes:

• Uniformity: These blocks ensure consistent moisture content and nutrient distribution, allowing for even plant growth.
• Sizes: 1 x 1 x 1 cm.
• Structure: They allow for strong root expansion throughout the entire block.
• Preparation: Rockwool typically has a high pH and requires pre-soaking in pH-adjusted water (usually around 5.5 - 5.8) to stabilize and ensure optimal plant growth.

Common Uses:

• Propagation: Used for germinating seeds or rooting cuttings, often fitting into standard trays.
• Hydroponics: Ideal for drip irrigation systems, providing both stability and excellent water/air holding capabilities.
• Transplanting: Once roots emerge, these cubes can be transplanted into larger containers, such as rockwool slabs or soil.