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.