LECA Balls Expanded Clay Pebbles for Plants Hydroponics Aquaponics

8L or 2L Bag of LECA Balls Expanded Clay Pebbles for Plants Hydroponics Aquaponics Features: Stable and low-EC High total porosity (approximately 85% by volume) provides excellent root ventilation and oxygenation to plants Excellent draining capacity Strong, stable and durable Great for soil aeration and drainage Perfect for hydroponics, hydroculture, and aquaponics 8-20 mm size