Hydrodensa

Hydrodensa can be easily mixed with potting soil, acting as a substitute for clay. Unlike lava (hydro) granules, Hydrodensa has a high specific gravity, consists of three types of purified, baked clay and has the ability to bind the right nutrients. It prevents these very important substances for plants being flushed away, which means fewer nutrients need to be added to the soil medium. Hydrodensa also gives the soil medium a denser structure and ensures better water management.
By mixing Hydrodensa through the soil you ensure that plants are better able to regulate themselves at the growing and flowering stage, because for one thing the clay granules have a very positive impact on soil life.
 

As a hydroponic medium: Pour the granules in their pure state into pots or containers and tap down well. Make provision for good drainage. Many types of plant can be sown direct in the Hydrodensa medium.

- With an ebb and flow system on pure Hydrodensa, allow the water to flow in 3-4 times a day up to 2/3 of the median height and flow out again within 10 minutes.

- Hydrodensa can be flushed through very quickly, with the result that errors in pH and EC readings can be corrected swiftly and reliably. Use pH-adjusted water (pH 5.0) with no nutrients for this purpose.

- Immediately after watering there will still be 40% air present between the granules.

- Hydrodensa can be used in any shape.

- Over-watering is impossible if the water is able to drain away beneath the medium.

- Starting with an EC of approx. 0.7 mS is best.

For best results we advise to soak Hydrodensa for 24 hours in water with a pH levelled down to 5.0 and an EC of 1.0 before use.

It is recommendable to level down the pH to 5.0 three times during this day.