Optimize Organics LECA Pebbles are 10-20mm expanded clay balls for improved aeration, drainage, and root health in hydroponic and soil-based plant systems.
8L bag of Optimize Organics LECA Pebbles are 10-20mm expanded clay balls for improved aeration, drainage, and root health in hydroponic and soil-based plant systems.
Optimize Organics LECA Pebbles are 10-20mm expanded clay balls for improved aeration, drainage, and root health in hydroponic and soil-based plant systems.
8L bag of Optimize Organics LECA Pebbles are 10-20mm expanded clay balls for improved aeration, drainage, and root health in hydroponic and soil-based plant systems.

Leca Pebbles (10–20mm)

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Size

LECA Pebbles – 10–20mm

Aeration • Drainage • Inert Structure • Soil & Hydro Use

These 10–20mm LECA (Lightweight Expanded Clay Aggregate) Pebbles are a durable, mineral-based substrate made from 100% natural clay. Heated at high temperatures in a rotary kiln, they expand into lightweight, porous ceramic spheres that promote airflow, improve drainage, and create ideal conditions for root development and microbial activity.

Perfect for both soil-based growing and hydroponic systems, these larger LECA pebbles can be used to lighten mixes, build drainage layers, or serve as a standalone substrate.

🌿 Benefits

  • Promotes excellent aeration and root zone oxygenation

  • Increases drainage and reduces risk of overwatering

  • Provides a home for beneficial microbes

  • Inert, pH-neutral, and EC-stable

  • Durable and reusable over many growing cycles

🌱 How to Use

  • Soil Mixes – Blend into tropical soil mixes to improve texture and air flow

  • Drainage Layer – Add a layer at the bottom of containers to reduce waterlogging

  • Hydroponics – Use alone or combined with other inert media for deep water culture, flood-and-drain, or drip-feed systems

 Specs

  • Size: 10–20mm

  • Material: 100% Natural Expanded Clay

  • Properties: pH and EC stable, highly porous, lightweight

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