Botanicare CocoPro CubeBotanicare CocoPro Cube "CocoPro cubes contain thoroughly washed and buffered coco fiber, pith, and husk for a consistent ratio of air and water throughout each cube. This high performance blend delivers oxygen to plant roots while retaining moisture and nutrients giving you more control over your fertigation regimen. The breathable fabric cover promotes air gas exchange for increased root zone oxygen levels, provides excellent water drainage for