Hydroton is an excellent, versatile growing medium. Composed of marble-sized LECA (Light Expanded Clay Aggregate), it’s a non-compacting, porous material and holds its shape to allow maximum drainage and aeration while holding exactly the right amount of water for your plants roots to thrive. Sterile and pH neutral it prevents nutrient lock-up and can’t introduce any bacteria or contaminants to your garden

Pro-tip: Not only is Hydroton ideal for deep water, drip, and ebb and flow systems, it’s also perfect as a addition to soil gardening. Use at a rate of 30% to soil for light, created and perfectly drained planters.
Hydroton is expanded clay aggregate that is used instead of soil. These marble sized clay pellets have high water storing properties. Chemically inert and pH neutral. Up to 90% of these pellets can be reused again and again the ramaing 10% is root bound.