LECA Clay Balls 6-10mm

LECA, or Lightweight Expanded Clay Aggregate, is made from 100% natural clay in a handy 6 to 10mm grade. Clean and pH-stable, these balls offer excellent aeration and drainage, making them ideal for hydroponics, including flood and drain, passive hydro, deep water culture and drip-feed systems. Their porous structure covers a large surface area that fosters beneficial bacteria around the root zone, leading to naturally healthier plants. A versatile, reusable growing medium, available in 5 and 25 litre sizes.