Rockwool is an extremely popular growing medium in the hydroponics community. It's composed of two natural ingredients, basalt rock and chalk, that are heated to 3000 degrees Fahrenheit and “spun” and cooled, transforming it into a material that is perfect for a plant’s root zone.
Rockwool is great a balancing moisture and oxygen, which provides a perfect middle ground to prevent over-watering or under-watering. Its fibers don't restrict the accessibility of nutrients for the plant as it provides an ideal medium for nutrient uptake. Rockwool alone has no naturally occurring nutrition, so the plant depends totally on the nutrient solution you give it.
BEGINNER's PERFECT ROCKWOOL
INSTRUCTION MANUAL PROVIDED!!
PACKAGING SIZE: 36 CUBES (1 X 36CUBES SLAB)
Rockwool Cube Size: 3xm x 3cm x 4cm
Density: 80kg/m3
Link below if you want to order Wholesale/Bulk quantity!