Long-lasting nutrient substrate for freshwater aquariums

• Nutrient substrate for beautiful and permanent plant growth in all freshwater aquariums. Works for 5 years guaranteed
• Nutrient store: contains important plant nutrients, such as iron. Clay components store nutrients and release them again, as required.
• Efficiently prevents unwanted algae growth by promoting plant growth
• How to use for the initial setup: add the nutrient substrate and cover with a layer of rinsed substrate