Aquarium substrate ZOLUX Aquasand EKAI gray 1 kg – aquarium sand, decorative gravel

ZOLUX Aquasand EKAI gray 1 kg is a decorative aquarium substrate formulated for freshwater aquariums. This fine gray sand/gravel creates a natural-looking base layer that supports planting aquatic plants, stabilizing décor and creating aesthetically balanced landscapes in both nano and standard aquaria. The neutral gray tone complements a wide range of fish and plant colors while remaining non-abrasive and easy to clean.

Advantages

The substrate combines a fine grain size with good porosity to allow water circulation around roots and beneficial bacteria, contributing to biological filtration. Its uniform color and texture offer visual consistency for aquascapes and reduce reflection and stress for fish. Made for aquarium use, it does not alter water chemistry in properly cycled freshwater systems and is suitable for repeated cleaning and rearrangement of decorations and plants.

Suitable for

• Nano aquariums and small desktop tanks
• Standard home freshwater aquariums
• Planted tanks with small to medium-rooting aquatic plants
• Decorative scapes and natural-looking biotope setups
• Bottom layer for biological filtration support

Key specifications

• Color: neutral gray to enhance natural aquascapes
• Weight: 1 kg package suitable for topping or creating thin substrate layers
• Grain type: fine sand/gravel suitable for plant rooting and easy aquarium cleaning
• Compatibility: formulated for freshwater aquarium environments
• Surface: smooth grains to limit abrasion on fish and plant roots

How to use

Rinse the substrate thoroughly with freshwater before introducing it into the aquarium to remove dust and fine particles. Spread an even layer across the tank bottom; for planted aquaria, build a slightly deeper layer at the back or planting zones to facilitate root growth. After placing the substrate, arrange decorations and plants as desired and fill the tank slowly to avoid disturbing the layer. Allow mechanical filtration to run and monitor water clarity for a short period while any residual fines settle or are removed by filters.

Usage recommendations

For best results in planted aquariums, combine the fine sand/gravel with root tabs or a nutrient-rich underlayer if heavy root-feeding plants are used. Regular gentle siphon cleaning during water changes will remove detritus while preserving planted root systems. Avoid aggressive stirring of the substrate to maintain plant stability and water clarity.