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    JBL The 7 balls

    JBL The 7 balls

    • Slow-release fertiliser for nutrient supply to the roots
    • Contains iron and minerals in a form that is easily available to the plants
    • Does not contain phosphate and nitrate
    In stock
    Free shipping on orders over € 50.- within Germany Change region
    1-3 business days - order today and we’ll deliver next week on Wednesday at the earliest
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    JBL The 7 balls are hardened balls containing fertiliser enriched with all the nutrients aquatic plants need, especially with iron and trace elements, using a special production method. The fertilising balls only give off nutrients slowly, which makes them a great depot fertiliser. The ball form is easy to apply in tanks that are planted already, Especially suitable for targeted fertilisation or re-fertilisation of aquatic plants that take up nutrients mainly over the roots, like e.g. species of the genera Echinodorus, Cryptocoryne, and many more.


    • For long-term root fertilising in an established aquarium
    • Contains iron and minerals in a form readily accessible for plants to absorb through the roots
    • Does not contain phosphates and nitrates
    • Depending on the plant size, press one or several balls into the root zone once a year



    JBL is a German company with a long tradition and a vast product range for aquarium enthusiasts. From high-quality fish and shrimp food over external filters to aquatic plant fertilisers - JBL offers an enormous choice for every aquarium keeper.

    The research and development department of JBL constantly brings new innovative products onto the market. No matter whether you are an aquascaper, fish keeper, shrimp keeper or planted tank enthusiast, JBL offers suitable tools and accessories for all of these aspects of the hobby in order to support aquarium enthusiasts with the set-up and maintenance of their tanks.

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    Customer reviews

    This item has been rated 4.4 out of 5 stars
    5 Reviews
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    5 Stars(3)
    4 Stars(1)
    3 Stars(1)
    2 Stars(0)
    1 Star(0)
    Florian S.
    15th March 2013
    JBL - Die 7 + 13 Kugeln
    JBL - Die 7 + 13 Kugeln

    etwas groß um sie zwischen bodendecker zu stecken, erfüllen aber ihren zweck

    simone h.
    einfache Düngerlösung ohne Spezialuntergründe
    27th January
    JBL - Die 7 + 13 Kugeln
    JBL - Die 7 + 13 Kugeln

    Mit den JBL "Die 7 (+13) Kugeln" bekommt man eine günstige Düngerlösung. Die Kugeln sind vielleicht etwas groß für Nano-Aquarien, lassen sich aber auch vor Verwendung... (mehr lesen)

    Christian A.
    19th January
    JBL - Die 7 + 13 Kugeln
    JBL - Die 7 + 13 Kugeln

    Zum nachdüngen ein absoluter super Dünger. Cryptocorinen usw. erstrahlen nach einer gewissen Zeit wieder in den schönsten Farben. Ich kann diesen Dünger nur empfehlen.