Aquaponics USA

HYC-50  $26.95

Hydroton Grow Bed Media


The name Hydroton is a substitute for all brands of expanded clay, even though it is trademarked; as it was perhaps the original name for this media.

Expanded clay is a popular medium for both aquaponic and hydroponic gardening around the world. It is also known as Light Expanded Clay Aggregate, or LECA.

It is manufactured by using a mix of the best qualities pure clay and are baked in an open furnace using high grade clean fuels, guaranteeing absence of heavy metals or other contaminates.

It is pH neutral. We tested it ourselves to make sure that is true.

Expanded clay is the inert hydroponics substrate of choice for professionals. It provides stability and the pebble has an ideal surface for roots and beneficial bacteria. The porous structure has a high water capacity and is suitable for both flood & drain and top irrigation systems.

In aquaponic and hydroponic systems, soil is replaced by these natural clay pebbles, which are derived from a renewable and plentiful source (clay) so it is considered an ecologically sustainable medium. The clay is formed into pellets and then fired in rotary kilns at 1200Cº. This causes the clay to expand inside, like popcorn, and become porous.

Expanded clay pebbles are light in weight, do not compact, are completely reusable – they can be cleaned and sterilized after use. They are also inert and contain no nutrients.

Because the pellets drain freely and don't hold excessive water, they provide good oxygen levels around the root zone and are particularly suitable for aquaponic and hydroponic flood and drain systems systems. Notice how the roots in this cross-section go all the way down to the water level in the picture above.

Introducing Cyco Hydro Clay – Expanded Clay Media

Cyco has purchased the Oketau German foundry where the original Hydroton was made and is now making it there under the name Hydro Clay. Cyco Hydro Clay is certified as a growing media through the RAL “Quality Assurance Association” and is a substrate approved and used for Plant Cultivation.

Cyco Hydro Clay is tested monthly by RAL and GGS to ensure the highest quality clay is produced. It can be used as a top dressing for plants to reduce evaporative losses, reduce algae, fungus gnats and unwanted weeds. It can be used as a bottom drainage layer or full pot medium for potted plants to provide adequate run off, thereby maintaining ideal rhizopheric root conditions and also increasing the physical stability of plants. And, of course, it can be used in deep media aquaponic and hydropnonic grow beds.

Cyco Hydro Clay has 8-16 mm irregular shaped pebbles, comes in 50 liter bags and has a great price when compared to Mother Earth Hydroton below.

When you order Hydroton from Aquaponics USA, you are ordering 8-16 mm pellets in 10, 25 or 50 Liter Bags. When ordering multiple 50 liter bags, contact us first and we will get you the best shipping price.

HYD-10L  $12.95

HYD-25  $21.95

When ordering 5 or more 50 liter bags, contact us first and we will get you the best shipping price.

HYD-50  $33.95

Hydroton is back and being made by Mother Earth in Europe, which may have purchased the name from the company that made it originally. In fact, Aquaponics USA was the poster company for a new media Oketau of Germany, the originator of Hydroton, created especially for Aquaponics. Sadly, Oketau went out of business, not because Aquaponics isn’t generating a lot of sales for Hydroton; but because Hydroton was a secondary product for this company that was in the construction business.

When ordering 5 or more 50 liter bags of Hydro Clay, contact us first and we will get you the best shipping price.

Introducing Hydroton Giant with 15-25 mm pellets. Avilable in 50 liter bags. When ordering 5 or more 50 liter bags, contact us first and we will get you the best shipping price.

HYD-50G  $37.95