Decorative aquarium gravel ZOOLOGIA Aqua Natura Ventuari River 1.6–4.0 mm, 0.8 kg

ZOOLOGIA Aqua Natura Ventuari River decorative aquarium gravel, grain size 1.6–4.0 mm, weight 0.8 kg, is designed as a natural-looking substrate for freshwater aquariums. The gravel reproduces the appearance of a riverbed and creates a stable base for plants, ornaments and aquarium landscaping. Its rounded particles and mixed tones aim to enhance visual depth while allowing water circulation and biological colonization on particle surfaces.

Advantages

The gravel combines a narrow particle size range that is suitable for planted tanks and community aquaria, promoting root anchoring and minimizing compacted anaerobic pockets. Its mixed natural tones give a realistic riverbed effect without sharp edges that could harm bottom-dwelling fish. The material supports colonization by beneficial bacteria, contributing to a balanced aquarium environment.

Suitable for

• Freshwater planted aquariums
• Community tanks with small to medium bottom-dwelling fish
• Aquascaping and decorative riverbed layouts

Key specifications

• Particle size: 1.6–4.0 mm
• Net weight: 0.8 kg
• Appearance: mixed natural riverbed tones, rounded grains
• Intended use: freshwater aquarium substrate
• Compatibility: suitable for live plants and biological filtration support

How to use

Rinse the gravel thoroughly under running water until the rinse water runs clear to remove dust and fines before adding it to the aquarium. Spread an even layer on the aquarium bottom; for planted aquaria a substrate depth of 3–5 cm is generally recommended to secure plant roots. Place decorations and plants as desired and add water slowly to avoid disturbing the substrate. Monitor water clarity for the first few hours and perform partial water changes if significant clouding occurs.

Usage recommendations

For best results in planted tanks, combine the gravel with a nutrient-rich soil or root tabs to ensure plant nutrition. Avoid use in aquaria with very small fry that could be trapped between grains; choose finer substrate if required. Regular vacuuming of the surface during maintenance will keep the gravel clean without removing the beneficial bacterial layer beneath.