Hydroponic Grow Mediums

At Hydro Experts, we stock a wide variety of hydroponic grow mediums at unbeatable prices. Plus, we offer free shipping Australia-wide for all orders over $499. So whether you're just starting out or you're a seasoned pro, we've got you covered.

We have everything from coco-coir to clay pebbles to Rockwool, perlites and vermiculites. And our pot mixes are perfect for any type of plant. So whether you're growing tomatoes or roses, we have the perfect medium for your Hydroponic or Organic growing.

60 Products
Canna Aqua Expanded Clay Balls - 2L | 8-16MM

Canna Aqua Expanded Clay Balls - 2L | 8-16MM

$9.95
Free shipping over $499*
Canna Coco Professional Plus+ - 50L Bag | RHP Certified

Canna Coco Professional Plus+ - 50L Bag | RHP Certified

$44.95
Save 11%
$39.95
Postage applies
Canna Terra Professional - 50L Bag | Potting Mix | Soil | Substrate
Eazy Plug Pyramid - Large | 25 x 25 x 15CM

Eazy Plug Pyramid - Large | 25 x 25 x 15CM

$29.95
Free shipping over $499*
Eazy Plug Pyramid - Mini | 12 x 12 x 10CM

Eazy Plug Pyramid - Mini | 12 x 12 x 10CM

$9.95
Free shipping over $499*
Organic Gardening Solutions Super Soil Kit - 6KG | Nutrients

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Growing plants without soil may seem like an idea from the future, but it’s actually a growing method that’s becoming increasingly available to any gardener today. Hydroponic gardens replace the soil with sterile growing media—such as clay pellets, rock wool, or coconut husk—and require t ...
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Peat moss is an excellent soil amendment for your acid-loving plants. There are approximately 12,000 species of moss, but it’s only the 380 species of sphagnum moss that create peat. Bogs and fens form where sphagnum grows because both living and de ...
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For any mediums used in container or bed gardening, the primary concern is consistency, from batch to batch, and from year to year. The medium must be free from weed seeds and pathogens that may stop the grower from achieving the best poss ...
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Soilless potting mixes What are they Why do they exist and, How do we get the most out of them? Soilless potting mixes What are they Why do they exist and, How do we get the most out of them? In this Hydro Experts article, we’l ...
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Coco substrate can act as a buffer, storing water and nutrients for the plant. ...
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Q. I already use Trichoderma. Are mycorrhizal fungi any different? Both are beneficial fungi found naturally in soil. Trichoderma are more for cycling nutrients in the soil and providing p ...
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Hydroponic grow mediums are just fancy words for "soil-less material that supports the plant weight and holds it upright." In other words, it's what keeps your plants from falling over.

It's generally porous so it can hold moisture and oxygen (which your roots need to grow). But it's important to remember that Hydroponic growing media are inert, which means they don't provide nutrients. The nutrients that plants need come from the nutrient solution, which is what you water and moisten the growing media with. So choosing the right growth medium is crucial and essential.

You need to choose one that suits both the plant's and your system's needs. Water retention, aeration, and pH balance are all aspects that vary depending on the medium and must be considered when making the final choice.

Some of the most widely used growing media are coco, clay pebbles, Rockwool, perlites and vermiculites and pot mixes.