Cocogro from Botanicare is an advanced growing media that has been aged 18 to 24 months. This allows the formula to be perfectly pH and nutrient balanced. It has optimum air to water ratio with 30% air content and is fully decomposed with stable pH & EC. Lastly, it is inoculated with mycorrhizae and trichoderma fungi and is flushed of excess sodium. 1.75 cubic ft.