Dennerle Deponit NutriBalls Aquarium Plant Fertilizer, 10 count
By Dennerle
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1 Customer Questions
Is there copper in this product? Is this safe for a shrimp aquarium?
Answer by • Sep 17, 2025
This is safe for all aquarium inhabitants. They are valuable clay minerals that are also found in any natural water bed. They contain no copper but many vital trace elements. Furthermore, the nutrients they contain are actively released by the plants through their root acids and immediately absorbed. Therefore, practically no nutrients are released into the water. All Dennerle fertilizers are safe for invertebrates. Many invertebrate keepers are confused by the copper declaration. Copper is also important as a trace element for shrimp. It only becomes toxic in larger quantities. The copper content added with each dosage is minimal but absolutely necessary for all organisms.