Silica Sand – Coarse Grain 1-2mm | Aquarium Substrate, Crafts

Silica Sand is a coarse 1–2mm mineral substrate suitable for aquariums, aquascaping, drainage mixes, terrariums and decorative horticultural applications. Its graded particle size helps provide structure while allowing good water movement and reducing excessive compaction.

Our Silica Sand is a practical choice for hobbyists, aquarists and growers looking for a clean, durable substrate that can be used across a wide range of applications.

Ideal for Aquariums & Aquascaping

The 1–2mm grain size makes this material suitable for:

- Freshwater aquariums

- Marine aquarium setups

- Aquascaping base layers

- Planted tanks

- Shrimp and fish tanks

- Decorative aquarium areas

Its coarse texture provides a stable base while allowing water to move through the substrate more freely than very fine sand. Rinse thoroughly before use to remove natural dust created during handling and transport.

Useful for Drainage & Growing Media

Coarse mineral sand can also be incorporated into horticultural and decorative applications, including:

- Cactus and succulent mixes

- Bonsai growing media

- Terrariums

- Decorative planters

- Specialist drainage layers

The granular structure helps maintain spaces within growing media and can be blended with other substrates where additional weight, drainage or structure is required.

Key Benefits

- Coarse 1–2mm particle size

- Suitable for aquarium and horticultural applications

- Helps improve substrate structure

- Allows good water movement

- Durable mineral material

- Easy to rinse before use

- Suitable for decorative applications

- Available in multiple pack sizes

How to Use Silica Sand

For aquarium use, rinse thoroughly with clean water before adding it to the tank. Continue rinsing until the water runs substantially clear, then position the substrate to the required depth.

For horticultural use, blend with the chosen growing medium according to the drainage and structural requirements of the plants being grown. It can also be used as a decorative top layer where appropriate.

Growcery Gardening Silica Sand is a versatile 1–2mm substrate for aquariums, aquascaping, drainage applications and specialist growing-media blends. Choose the required pack size from the options above.