Aquarium Decorative Gravel ZOOLOGIA Aqua Natura Caparo Gray 1–8 mm, 0.8 kg

ZOOLOGIA Aqua Natura Caparo Gray decorative gravel is a natural-looking substrate material designed for freshwater aquariums and small terrarium projects. The gravel features a mixed grain size of 1–8 mm and a net weight of 0.8 kg, providing a neutral gray base that complements planted tanks, community systems and nano setups. Made from non-toxic mineral components, this gravel serves both aesthetic and basic biological roles by offering surface area for beneficial bacteria and a stable visual background for fish and plants.

Advantages

The neutral gray color creates a subdued, natural appearance that highlights fish and plant colors without overpowering the scene. Its mixed grain size allows for water flow through the substrate while reducing compaction in localized zones. Because the composition is non-toxic, the gravel is safe for use with most freshwater fish, invertebrates and aquatic plants. The product arrives pre-washed and ready for placement, simplifying initial setup and minimizing cloudiness during installation.

Suitable for

• Freshwater community aquariums
• Planted tanks and aquascapes
• Nano tanks and desktop aquariums
• Small terrariums or paludariums

Key specifications

• Grain size: 1–8 mm
• Net weight: 0.8 kg
• Color: gray, natural mineral tone
• Material: non-toxic mineral gravel suitable for freshwater use

How to use

Rinse the gravel briefly under running water before adding it to the aquarium to remove any loose dust. Spread an even layer across the aquarium floor, adjusting depth according to plant and filtration needs; typical depth for planted tanks is 2–4 cm. Arrange decor and plants on top of the gravel, taking care not to create deep compacted pockets. After installation, fill the tank slowly to avoid displacing the substrate and monitor water clarity until initial settling is complete.

Usage recommendations

For planted aquariums, combine this gravel with nutrient-rich substrate layers or root tabs to support plant growth. Perform regular vacuuming near the surface during maintenance to remove organic debris without disturbing the substrate structure. Avoid abrupt changes in water chemistry during initial cycles and introduce sensitive species gradually once water parameters are stable.