 |
Hydroton is a type of expanded clay, or more commonly known as clay balls. They have properties of high water storage and balanced capillary action which accelerate plant growth. Manufactured in Germany from a renewable and plentiful source (clay), it is considered an ecologically sustainable medium. The clay is formed into pellets and then fired in rotary kilns at 1200°C. This causes the clay to expand inside, like popcorn and it becomes porous.
Hydroton clay balls are lightweight, do not compact and are completely reusable - they can be cleaned and sterilized after use. They are also inert, pH neutral and contain no nutrients. Because the pellets drain freely and don't hold excessive water, they provide good oxygen levels around the root zone.
Beware of cheaper, lower quality clay balls. Other brands are available (usually from China), but consider the following points before deciding.
-
Hydroton is fully imported from Germany by a couple of selected Australian distrubutors, including Holland Forge.
-
Hydroton is tested by the University of Hokenheim every two months as part of the quality control program
-
Hydroton is dustfree.
-
Hydroton pellets are of a consistant size and shape, unlike cheaper brands.
-
Widely used in the Hydroponics and Aquaponics industry.