Aquarium substrate Tetra CompleteSubstrate 10 kg – natural gravel mix for planted and community tanks

Tetra CompleteSubstrate 10 kg is a natural gravel mix formulated for freshwater planted and community aquariums. Packaged in a 10 kg bag, the substrate provides a stable base layer that supports plant root anchoring and contributes to a balanced aquarium environment. Its neutral appearance helps create a realistic natural bottom while allowing biological processes such as colonization by beneficial bacteria that assist in nutrient cycling and filtration.

Advantages

The gravel mix combines particle sizes and a neutral mineral composition to support both rooted aquatic plants and free-swimming fish without altering water chemistry. It offers good mechanical stability for decorations and plants, promotes substrate aeration, and encourages colonization by nitrifying bacteria. The natural colour tones enhance visual harmony in planted and community tanks while remaining easy to arrange during aquascaping.

Suitable for

• Freshwater planted aquariums with rooted plants
• Community tanks with small to medium-sized tropical fish
• Biotope-style aquaria where natural visual appearance is desired
• New aquarium setups requiring a stable base layer for decor and planting

Key specifications

• Packaging weight: 10 kg bag
• Composition: natural gravel mix with mixed particle sizes
• Colour: natural neutral tones suitable for natural-looking aquascapes
• Chemical influence: formulated to be chemically inert, not intended to significantly change pH or water hardness
• Function: supports plant rooting, substrate stability, and biological filtration

How to use

Rinse substrate briefly if required by local handling instructions, then spread evenly across the aquarium base to create a layer of the desired depth for plant roots and decor stability. For planted tanks, provide a deeper planting area where roots can establish; for community tanks a moderate depth is sufficient to support decorative elements and allow burrowing species to behave naturally. Add water slowly to avoid disturbing the substrate and arrange plants and hardscape once the base layer is stable.

Usage recommendations

For optimal plant growth, combine the substrate with species-appropriate fertilisation and lighting. When establishing a new planted aquarium, consider layering finer planting substrate or root tabs in planting zones to support nutrient-demanding plants while using the gravel mix for general coverage. Routine gentle vacuuming of the top substrate surface during maintenance will remove debris without excessively disturbing root systems.