Sera-Gravel Gray 2-3mm 3L

Sera Gravel Gray is a CO₂-proof, water-neutral gray gravel with 2–3 mm grain size for freshwater and marine aquariums. Does not affect water parameters or tint water. Round grains allow excellent plant root growth and are safe for bottom-dwelling fish like catfish. Independent testing confirms pollutant-free—suitable for sensitive species. Available in 3 L and 6 L.

Specifications:

• Category: Aquarium Substrate

• Brand: Sera

• For: Freshwater and marine aquariums

• Grain Size: 2–3 mm

• Sizes: 3 L, 6 L

Key Features:

• Water-Neutral: No effect on water parameters, no tinting.

• CO₂ Proof: Safe for planted tanks.

• Excellent Plant Growth: 2–3 mm grain supports root development.

• Bottom-Fish Safe: Round grains protect catfish and other bottom-dwellers.

• Pollutant-Free: Tested to DIN/EN ISO standards.

• Versatile Use: Freshwater and marine compatible.

Instructions for Use: Rinse thoroughly before use. Spread evenly over aquarium bottom. Add water slowly to minimize cloudiness. Suitable for all freshwater and marine setups.