Description Royal Gold Tupur was developed with one idea in mind—feeding the plant as much and as often as possible! This high-porosity mix allows the gardener to feed often, supplying all major NPK with any nutrient system. Although it was created for slow drip drain to waste systems, gardeners have enjoyed success in conventional and hydroponic-style gardens and in containers of all sizes. Feed 1 to 6 times a day depending on the size of your container.