Natural Black Aquarium Gravel 4-6mm

Natural Black Aquarium Gravel 4-6mm is a bold, versatile substrate that adds depth and sophistication to any freshwater aquarium. The rich dark tones create a dramatic contrast that makes vibrant fish colours and lush plant greens truly come alive, while the medium grain size allows excellent water flow and is comfortable for bottom-dwelling species.

Further Information

• Type: Natural aquarium gravel
• Grain Size: 4–6mm
• Colour: Natural black
• Best For: Freshwater community tanks, planted tanks, aquascaping, shrimp tanks
• Placement: Full tank base layer (recommended depth: 3–5cm)
• Skill Level: Beginner to Advanced
• Note: Rinse thoroughly before use

How Much Do I Need?

Standard tanks — guide only, tank footprint will determine quantity required:

• 60L tank → ~8kg
• 120L tank → ~16kg
• 200L tank → ~28kg

Planted tanks — we recommend a minimum of 2" (5cm) of substrate depth for healthy root development. Double the quantities above as a starting guide.