JBL The 7 Balls

Features & Advantages

• Long-term root fertiliser for freshwater aquariums
• Specially made clay balls loaded with nutrients
• Important minerals through iron, potassium, other trace elements
• Optimal, precise supply with all vital trace elements
• 1 pack The 7 balls, 7 fertiliser balls, depending on the size of the plant, press one or more balls once a year into the plant area