This is a root fertilizer that stimulates the growth of aquatic plants. This product contains all the nutrients including the trace elements that roots need in a readily accessible form. Rich in iron and other macronutrients and micronutrients, Planatopia Root Tabs facilitates the nutrient supply through the plant roots that have been determined to be beneficial to aquatic plants to get into vigorous growth. It prevents and compensates the deficiency symptoms such as iron and potassium deficiencies. Perfect for the beginner, Planatopia Root Tabs contains all the essential nutrients found in Planatopia Bloom and Planatopia Ultra.