Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a light weight agrregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure. LECA has an approximately round or potato shape due to circular movement in the kiln, and is available in different sizes and densities. LECA is used for hydroponic grow medium, it is an environmentally friendly grow medium that can be reused over and over again! These clay pebbles have been fired in super-heated kilns causing them to expand and become extremely porous. These tiny holes and crevices inside each pebble hold and transmit extremely high amounts of air and water to your plant's roots, helping them grow bigger and faster, and making them perfect for hydroponic systems. And since these clay pebbles are pH stabilized, they won't release any additional minerals into your plant's nutrient stream.

Size: 2-4mm,4-8mm, 8-16mm, 10-30mm etc.

Bulk Density:

· 2-4mm----------- 500KGS/CBM

· 4-8mm----------- 380KGS/CBM

· 8-16mm---------- 320KGS/CBM

· 10-30mm----------- 260KGS/CBM

MOQ: 600BAGS, different order quantity can be available.

Payment Terms: LC, T/T, Western Union, Paypal.

Production Capacity: 10000CBM per month

Using clay pebbles as your grow medium in either container gardening or in a hydroponic system offers many benefits. The major benefit is that expanded clay pebbles retain moisture. This is important as we are trying collectively to maximize the efficiency of our water supple. Secondly, because clay pebbles are porous and lightweight they increase aeration to the plants’ root systems. In addition to this quality, clay pebbles also improve drainage which is important to maintaining the health of the root systems and preventing rot. Clay pebbles are also a good medium to ensure proper support of your plants.

Because clay pebbles are made under extreme heat, they’re a sterile substrate and also have a neutral pH level. Clay pebbles are an easy medium to reuse meaning they are ecologically friendly given their long life cycle.

All of these benefits of clay pebbles lead to an overall improvement in your plant’s growth and health which is why this grow medium quickly becoming one of the most popular soilless options.

 Packaging: 50L bag packaging, 1320bags/40'HQ, 600bags/20'GP.