Pro-tip: This bag will fill approximately 23 one-gallon containers.
Grodan Crowcubes are an ideal hydroponics stonewool substrate for growing many crops. Ideally suited for drip irrigation, the product also performs well under ebb & flood applications. Growcubes provide plant roost with a stable foundation and an excellent balance of air and water. Cubes are about 1/4 inch in size. Large bag will fill about twenty-three one-gallon plant containers