JBL The 7 Balls - 1 itemfrom JBL
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The 7 Balls are hardened pellets of manure that use a special method to enrich aquatic plants with essential nutrients - especially iron and trace elements. The nutrients are released slowly, which creates a beneficial deposit effect.The ball form allows for convenient use even in fresh water aquariums that are pre-arranged. The 7 Balls are especially well-suited for targeted fertilization, or refertilization of aquatic plants who gather further nutrients in their roots, ex. Echinodorus-Arten, Cryptocorynen and others. Application: Depending on the size of the aquatic plants, press one or more balls into the ground at the base of the roots. Repeat after approx. one year.