7 fertilizer balls

• Primary care for plant roots: specially produced clay balls, loaded with nutrients, for freshwater aquariums
• Storage capacity for nutrients. No deficiency symptoms: important trace elements such as iron, minerals
• Optimal promotion of plant growth means less algae growth. No phosphates and nitrates
• Strong root formation in plants is a sign of high nutrient absorption through the roots
• Package contents: 1 pack The 7 balls, 7 fertiliser balls. To use: depending on the size of the plant, press one or more balls into the root zone once a year