LECA Expanded Clay Balls

LECA Expanded Clay Balls

These LECA Expanded Clay Balls are a versatile and highly effective growing medium perfect for aquarists, terrarium builders, and hydroponic growers who want a natural, inert substrate that promotes healthy plant growth and stable water conditions. Made from high-quality fired clay, each pebble features a lightweight, porous structure that improves aeration and water retention, making LECA ideal for root development and microbial support.

Supplied in practical boxed quantities, LECA Expanded Clay Balls are especially useful for aquascaping, planted tank bases, terrarium floors, or as a support medium for potted plants and hydroponic systems. Their uniform round shape and porous surface create an optimal environment for plant roots to breathe while providing excellent drainage and reducing the risk of rot.

Key benefits
• Promotes healthier root development through superior aeration
• Supports stable humidity and moisture levels in soilless systems
• Porous structure encourages beneficial microbial activity
• Lightweight and durable, with no risk of breaking down over time
• Great for aquariums, terrariums, and hydroponic setups

How to use it
Rinse LECA balls thoroughly before use to remove dust. Spread an appropriate layer in the base of your pot, terrarium, or aquarium before planting. In hydroponic systems, LECA provides structural support for plant roots while allowing even water distribution. When used in aquariums, it’s ideal as a drainage layer under soil or as a planted substrate component.

Available Sizes: 12kg bag

McMerwe’s comments: We recommend LECA Expanded Clay Balls for use in grow beds, filter chambers, or underplants — especially in planted tanks and aquaponics where strong root anchoring and microbial support matter. They’re easy to rinse, won’t break down over time, and help promote a healthier, more balanced aquatic environment with minimal maintenance.  [Rating: 5/5]