DENNERLE DEPONITMIX NUTRIBASIS 6 IN 1 - 4,8 KG Excellent starting conditions for beautiful plant growth in any aquarium: 1. Concentrated nutrient iron in depot form provides deep green leaves. 2. High-quality quartz sands form an optimal soil climate. 3. Selected clay minerals, in particular the high-quality montmorillonite, regulate the nutrient balance: they give off nutrients if necessary and absorb them again if there is a surplus. 4. Humine-rich natural peat provides a slightly acidic soil environment with an optimum pH value and unlocks the nutrients in a way that suits the plant. 5. All nutrients and trace elements are available in depot form and have both an immediate and long-term effect. 6. Guaranteed to be safe for all plants, fish, shrimp, lobsters, snails and other aquarium inhabitants.