Tropica Plant Growth Specialised Fertilizer (liquid) is ideal for aquaria with many and/or fast-growing plants and a relatively low stock of fish or shrimp. With the integrated pump head, Specialised Fertilizer is very easy to dose. One pump stroke equals approximately 1.2 ml. - contains iron, manganese and vital micronutrients - contains nitrogen and phosphorus for plants with elevated nutrient requirements - ideal for aquaria with many and/or fast-growing plants Use Tropica Plant Growth Specialised Fertiliser is added each week after the water change. Tropica recommends to add 5 ml per 50 l of aquarium water, however, please consider the individual requirements of the plants. Besides micronutrients, Specialised Fertiliser also contains all the essential macronutrients. We recommend the use of this fertilizer for plants that show an overall nutrient deficiency. Please note that present algae may start growing faster when Tropica Specialised Fertiliser is added. As this liquid fertilizer contains nitrogen (N) and phosphorous (P), you'll need to consider the plants' capacity for absorbing it when dosing in order to avoid unwanted algal growth. When you notice algae formation, reduce the dosage by 50% and change more water more frequently than before. This water change does not only reduce the nutrient content of the water but reduces the presence of algal spores, waste and other elements that may have accumulated in the aquarium water. Dosage 5 ml per 50 l of aquarium water per week Content 125 ml Sufficient for 1,000 l of aquarium water