JBL The 7 + 13 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

The stronger the root development of the plant, the better the nutrient absorption through the roots

Package contents: 1 pack The 7 + 13 balls, 20 fertiliser balls. To use: depending on the size of the plant, press one or more balls into the root zone once a year