Expanded clay pebbles in 3-8mm, 8-12mm, 11-14mm and 25-35mm grades, pH 6.5 to 7.0, reddish brown, 13kg bags, for hydroponics and aquariums.
Greenhouse NFT
Strawberry & Leafy Greens
Project Configuration
PVC NFT hydroponic gully / channel
Commercial greenhouse hydroponics
Ground-supported and hanging layouts
Farm, distributor and greenhouse project supply
Expanded Clay Pebbles pH 6.5 to 7.0. Clay pebbles work because they hold air as well as water: the fired surface is porous. As a result, a flooded pot drains to a moist but oxygenated root zone. Four grades cover net pots through to deep bed media.
| Product Name | Expanded clay pebbles |
| Material | Clay soil |
| Grades | 3-8 / 8-12 / 11-14 / 25-35 mm |
| pH | 6.5 – 7.0 |
| Colour | Reddish brown |
| Packing | 13 kg per bag |
| Application | Hydroponics and aquarium |
| Advantage | Soilless agriculture |
Net pot systems, deep bed media, aquaponic grow beds and aquarium filters where a stable, airy medium is needed.
Rinse the pebbles before use, fill the pot or bed, then flood and drain as normal. The medium holds no nutrients itself. As a result, feed comes entirely from the solution.
Rinsing matters more than it looks: dust from the firing clogs pumps and skews the first reading of the tank. You can read more about the background of this method on Expanded clay aggregate.
You may also need:
8-12mm sits well in a 3 or 4 inch pot without falling through.
No, the pebbles are inert and last for years with occasional rinsing.
Yes, fired clay sits near neutral at 6.5 to 7.0 and does not drift.





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The supplied product page shows strawberry and leafy-green greenhouse applications. Final planting spacing and layout should be confirmed for the specific crop and project.
The supplied page shows both galvanized support stands and hanging greenhouse layouts. The final support configuration should be matched to the greenhouse structure.
The source material includes multi-row greenhouse installations and project photographs, so the redesigned page is structured around commercial and project-based buying decisions.
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