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NATURAL GRAVEL KONGO 3–8 mm – Natural Slate Gravel for Aquariums with Structure and Contrast
Natural Gravel Kongo 3–8 mm by Dennerle is a broken dark gray slate gravel designed to create natural, structured aquascapes with striking visual contrast. Its medium grain size and angular texture make it perfect for realistic paths, focal points, and layered compositions—especially in combination with green aquatic plants and pale driftwood or stones.
Inspired by the Congo River biotope, this 100% natural gravel provides a realistic and elegant substrate solution for both beginner and advanced aquascapers. It is light- and CO₂-resistant, inert in water, and safe for all aquarium species, including bottom dwellers and shrimp.
With its 3–8 mm grain size, it offers excellent substrate stability while remaining porous enough for beneficial bacteria and fine root penetration. Its bold, dark tone enhances plant coloration and adds natural depth to your aquarium landscape.
Main features:
Broken slate gravel in natural dark gray
3–8 mm grain size for stable and decorative layouts
Ideal for contrast with green plants and pale hardscape
Inspired by the Congo River aquatic environment
Resistant to light and CO₂ – inert and non-toxic
Safe for all aquarium inhabitants
Supports colonization of beneficial bacteria
Perfect for structured, nature-style aquascaping
Why choose Natural Gravel Kongo 3–8 mm:
Kongo Gravel 3–8 mm is the perfect choice for aquarists who seek a natural, contrasting, and functional substrate for planted tanks, shrimp setups, or biotope recreations. With its quality, safety, and visual appeal, it’s an ideal base for building long-lasting aquatic ecosystems.
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