JBL The 7 Balls

• Long-term supply for root fertilization in the established aquarium.
• Contains iron and minerals in a plant-available form for absorption through the roots.
• Without phosphate and nitrate.
• Depending on the size of the plant, press one or more balls into the root area once a year.

JBL The 7 balls are hardened fertilizer balls that have been enriched with all the nutrients important for aquatic plants, especially iron and trace elements, using a special process. The nutrients are released slowly, which creates a beneficial depot effect. The ball shape allows for convenient use in an already set up freshwater aquarium. Particularly suitable for targeted nutrient supply or additional fertilization of aquatic plants that absorb nutrients primarily through their roots, such as Echinodorus species, Cryptocorynes and others.

Depending on the size of the aquatic plants, press one or more balls into the soil in the root area. Repeat after about a year.