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DENNERLE GREY QUARTZ GRAVEL 5kg – Natural Quartz Substrate for Freshwater Aquariums with Safe and Stable Performance
Dennerle Grey Quartz Gravel 5kg is a high-quality natural crystalline quartz gravel, trusted for decades as one of the most effective and aesthetically pleasing substrates for freshwater aquariums. With a fine grain size of 1–2 mm, it is ideal for rooted aquatic plants and bottom-dwelling fish, thanks to its rounded edges that minimize injury risk.
Highly resistant to light and CO₂, this gravel retains its color over time and is chemically neutral, ensuring that it doesn’t alter water hardness or composition. Colored using iron oxides, it is free of harmful substances, making it perfectly suitable for use with shrimp and other sensitive invertebrates. The tiny gaps between the grains provide a perfect habitat for beneficial bacteria, enhancing the aquarium’s biological filtration.
Main features:
Natural grey crystalline quartz gravel
1–2 mm grain size, ideal for delicate plant roots
Rounded edges for bottom-dwelling fish safety
Free of toxins, colored with iron oxides
Chemically neutral – does not alter water hardness
Elegant, natural appearance for any layout
Long-lasting, light- and CO₂-resistant
Promotes colonization of beneficial bacteria
No pre-washing required
Why choose Dennerle Grey Quartz Gravel 5kg:
This gravel is the perfect choice for aquarists seeking a durable, safe, and biologically supportive substrate that also enhances the visual appeal of the aquarium. A dependable solution for stable ecosystems and professional aquascapes alike.
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