Professor's Nutrients - Hydro Clay (10L) Carton of 5 - Bulk 50L Premium Expanded Clay Aggregate (LECA)

5 X Professor’s Nutrients - Hydro Clay (10L) – Bulk Carton of 5 (50L Total)

Engineered for hydroponic commercial growers, indoor plant enthusiasts, and boutique market nurseries, this bulk carton contains five individual 10-Litre bags (50 Litres total) of Professor’s Nutrients Hydro Clay. This premium Lightweight Expanded Clay Aggregate (LECA) is a high-performance substrate manufactured by firing premium natural clay in a rotary kiln at extreme temperatures. This process causes the clay to expand into highly porous, lightweight spheres with a varying diameter of 8–16mm. Featuring a rigid, sterile outer shell and a micro-porous internal core, Hydro Clay provides the ultimate structural foundation for rapid root zone aeration and instant drainage.

Purchasing this product in a commercial carton of 5 provides an incredibly cost-effective, easy-to-handle bulk media solution. It is ideal for scaling up multi-site hydroponic systems or repotting large indoor plant collections. Completely inert, chemically neutral, and structurally stable, Hydro Clay ensures it will not break down, compact, or alter your water reservoir’s nutrient balance over long, intensive crop cycles.

Best For: Large-scale semi-hydroponic indoor plant cultivation (passive hydroponics), commercial Deep Water Culture (DWC) arrays, top-feed drip irrigation tables, base drainage layers in commercial crop rows, and bulk premium aroid potting mix blending.

Key Features:

• Convenient Bulk Carton Packing: Supplied as a matching set of 5 individual 10L hobby bags, giving you a massive 50L total volume that is easy to carry, store, and distribute across the greenhouse without hauling unmanageable bulk sacks.
• Optimised 8–16mm Mixed Sizing: The varying diameter of the clay balls ensures they interlock cleanly within net baskets, pots, and drainage channels, providing superior structural support for heavy plants while leaving massive macro-porous air gaps.
• Maximum Root Zone Aeration: By maintaining an open, uncompactable physical matrix, Hydro Clay ensures that fresh oxygen is constantly available to the rhizosphere, driving explosive lateral root development and protecting against waterlogged root rot (Pythium).
• 100% Inert & pH Neutral: Unlike inferior clay resources that can cause aggressive pH spikes, Professor's Hydro Clay is pre-stabilised and completely neutral, giving you absolute control over your precision liquid nutrient regime.
• Infinite Reusability & Value: Highly durable and physically robust, these clay pebbles do not degrade, dissolve, or weather away. They can be thoroughly washed, sanitised, and reused season after season, making this bulk pack an exceptionally smart long-term investment.
• Sterile & Pathogen-Free Base: The high-heat kiln manufacturing process ensures the medium is completely sterile upon packaging, entirely free from weeds, pests, harmful bacteria, and soil-borne diseases.
• Excellent Capillary Action: The porous internal core absorbs moisture and dissolved nutrients, drawing them upward to feed young roots via capillary wicking action while allowing excess surface water to drain away instantly.

Product Technical Specifications Matrix:

Preparation & Management Tips:

• The Initial Rinse: Like all premium LECA products, Hydro Clay can develop a fine clay dust during transit. Before introducing it to your active system or indoor pots, pour the pebbles into a mesh colander or a perforated bucket and rinse them thoroughly with fresh water until it runs completely clear.
• Pre-Soaking for Stability: For best results in recirculating hydroponic setups or passive indoor plant wicking, soak your rinsed clay pebbles in a pH-adjusted water bath (5.5–5.8) for 24 hours prior to planting. This fully saturates the internal pores and locks in your target baseline.
• Passive Hydroponics (LECA Method): For indoor houseplants like Monsteras or Anthuriums, fill a non-perforated decorative pot with a 2–3cm layer of Hydro Clay, sit the plant's clean root system on top, and fill the rest of the container. Maintain a water level only within that bottom 2–3cm layer; the clay's capillary action will wick moisture upward without drowning the roots.
• Sterilising Between Cycles: To reuse your Hydro Clay, strip out the old root mass, rinse the pebbles to remove organic debris, and soak them in a diluted hydrogen peroxide or sanitising solution. Rinse once more with fresh water, and the media is ready for the next run.

Ideal For:

• Commercial Hydroponics: The absolute gold standard medium for commercial-scale flood-and-drain tables, top-feed drip rings, or large DWC buckets.
• Base Drainage Layer: Placing a uniform 2–3cm layer at the bottom of standard soil or coco coir pots to prevent pooling water and ensure flawless drainage.
• Aroid & Indoor Potting Mixes: Blending into dense potting soils to lighten the overall weight of the container and instantly introduce permanent aeration pockets for indoor plants.

Oversized Item Delivery Options

Oversized, heavy, and structural goods ship via specialist freight. Freight is calculated at checkout from estimated packaged volumetric or physical weight. Carrier depot audits may adjust the rate — if the increase exceeds 10%, we will contact you before processing.

Available options include:

✔ Delivery to your closest depot for pickup — default method
✔ Direct delivery — requires an operational forklift on site unless Tailgate Delivery has been specifically requested and quoted (contact us — this cannot be selected at checkout)
✔ Tailgate hydraulic lift delivery — must be specifically requested; contact us for a quote (not available as a checkout option; extra fees apply; required if you do not have a forklift)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)

Important Notes:

• Shipping costs vary by location and method
• Any carton or consignment over 25–30kg (or over 200cm) must be palletised
• Without a specifically requested and paid Tailgate Delivery quote, palletised freight requires a forklift on site — otherwise the carrier will redirect to the nearest depot
• Bulky and oversized items cannot be delivered to a PO Box — provide a physical street address
• Failed deliveries, locked gates, unattended sites, or incorrect business/forklift declarations may incur carrier redelivery, demurrage, and restocking fees as set out in our Terms & Conditions

Business Delivery:

• Selecting a business/commercial delivery rate warrants that the address has an operational forklift and certified operator during business hours
• If the carrier cannot unload, the consignment may be redirected to a depot and secondary fees may apply
• Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment

See our Terms & Conditions (Article 8) for full freight and delivery rules.

Important Note on Availability & Shipping

Our warehouse is a logistics hub, not a retail showroom. Listing a product online does not mean it is stored at our Thomastown warehouse — many lines ship from supplier hubs (split fulfilment may apply).

How lead times work:

• Product page ETA: The Estimated Time of Arrival (ETA) / lead-time badge shown on the product page at checkout is the agreed delivery timeframe for that order under Australian Consumer Law.
• Metro baselines: Advertised ETAs apply to standard metropolitan zones. Regional and remote addresses may take longer and may attract surcharges.
• Peak seasons: Orders in March–May, August–October, EOFY (June), Black Friday/Cyber Monday (November), and Christmas/New Year (December–January) may automatically add a 2–4 week buffer beyond the product page ETA.
• Supplier-dependent / backordered items: If stock is delayed, we will notify you with a revised ETA. You then have 7 days to accept the new timeframe or cancel for a full refund.
• Adloheat: Custom-made products from Adloheat (Pakenham, VIC) may take 4–12 weeks depending on the order.

Full fulfilment, cancellation, and freight rules are in our Terms & Conditions.

Biosecurity & Interstate Shipping Restrictions

Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:

• Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
• Seeds cannot be shipped to Western Australia (WA).

Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.