Tropica Nutrition Capsules is a water plant fertilizer in Nutrition Capsules filled with granules containing slow-release nutrients. A complete mixture of macro-elements (nitrogen, phosphorus, potassium), microelements and biostimulates ensures the appropriate growth of the root system and a healthy, intensive development of your aquarium plants. Tropica Nutrition Capsules dissolve easily and should be placed in the substrate of the aquarium where the roots of the plants can access the nutrients.