Gold Label Hydrocorn and Coco is an ideal match for high water capacity, lower watering frequency and better rooting. We utilize the 8-16 mm Hydrocorn from Gold Label and the purest Gold Label Coco to give to give you the perfect ebb and flood growing media which also works well in any pot based systems. The 60/40 mix allows you to feed less frequently than in straight Hydrocorn and gives a buffer on the watering times.