Product description
Fine-grained 1 mm–4 mm clay hydroponic pebbles create a dense network of support and moisture distribution, ideal for delicate seedlings, fine-rooted herbs and microgreens. Responsibly sourced from premium natural clay, this size offers uniform moisture retention and gentle aeration, reducing transplant shock and promoting consistent early-stage growth in hydroponic systems and seed-starting mixes.
The inert, pH-neutral composition ensures no chemical interaction with nutrient solutions, while the small granule size provides excellent contact with root hairs for efficient nutrient uptake. Durable and reusable, these pebbles deliver long-term value—simply rinse and sterilise between growing cycles for continued performance.
Note: Sold by volume (litres), not by weight.
- Granule size 1 mm–4 mm: Perfect for seedlings, microgreens and fine-rooted plants
- Consistent moisture distribution: Maintains even hydration without waterlogging
- Gentle aeration: Porous structure supports healthy oxygen flow to roots
- Durable & reusable: Easy cleaning and sterilisation for multiple uses
- Inert & pH-neutral: Won’t alter nutrient balance or water chemistry
- Eco-conscious: Made from sustainable natural clay with no additives
- Multiple volumes: Available in 1 L, 3 L, 5 L, 10 L and 25 L bags
Simply fill your tray or container with these 1 mm–4 mm pebbles, position your seedlings or cuttings, and irrigate as needed. After each cycle, rinse away debris and soak in a mild bleach solution before a thorough rinse—ready for your next crop of robust, healthy plants.
Specifications
| Brand | COMERCECORE |
|---|---|
| Product type | Hydroponic Pebbles |
| Volume | 10 Litres, 25 Litres, 3 Litres, 5 Litres, 1 Litre |
Product Information
Find everything you need to know about this product, including shipping, warranty and return information.
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Delivery is free on every UK order, with no minimum spend.
Orders placed before 12pm, Monday to Friday (excluding UK bank holidays), are usually dispatched the same working day. All paid orders are dispatched within 2 working days.
Standard delivery takes around 1 to 3 working days after dispatch, depending on the courier. We send orders with Royal Mail, Yodel, Parcelforce, DPD or UPS, depending on the size, weight and destination. Larger items may arrive in more than one parcel. Tracking details are emailed once your order is dispatched.
We deliver to England, Wales, Scotland (including supported regions and islands) and the Isle of Man. We cannot deliver to Northern Ireland, the Channel Islands, BFPO addresses or PO Boxes. Please check your address and postcode carefully at checkout.
Every product is covered by your statutory consumer rights: it must be of satisfactory quality, fit for purpose and as described.
If an item arrives damaged or develops a fault, email info@comercecore.co.uk with your order number, a short description and clear photos. Please wait for our reply before sending anything back.
Within 30 days of delivery you can reject a faulty item for a full refund. After that we will repair or replace it, or refund you if that is not possible. Where an item is faulty, we cover the reasonable cost of returning it.
Where a product comes with an additional manufacturer warranty, the details are shown in its description. Damage from misuse, incorrect installation, wear and tear or modification is not covered.
You can return most items within 30 days of delivery if you change your mind. Please email info@comercecore.co.uk with your order number before sending anything back, and we will confirm your return and send the returns address.
Items should be unused, unaltered and in a condition we can resell. For change-of-mind returns you pay the return postage. Products you have cut, installed or modified (for example a pond liner cut to size) cannot be returned for a change of mind.
Please include your order number and name inside the parcel. We refund within 14 days of receiving the return, to your original payment method.
None of this affects your statutory rights. Read our full Refund Policy
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