JBL The 7 Balls

Root fertiliser for freshwater aquariums (7 fertiliser balls). Key Features: • 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.