CANNA Aqua Expanded Clay Pebbles | 45 Litre Bag | Hydroponic Growing Medium

The Foundation Every Hydroponic Root System Deserves 🪨

CANNA Aqua Expanded Clay Pebbles are premium baked clay granules built for serious hydroponic growing. They give your roots the perfect balance of moisture, oxygen, and stability — whether you're running a recirculating system, a run-to-waste setup, or using them as a base layer in pots and grow beds.

At 8–16mm in size, these pebbles are the ideal shape and weight to anchor your plants securely, allow water and nutrients to flow freely, and keep plenty of air around your roots at all times. Clean, inert, and pH-neutral — they won't interfere with your feed or your results.

Why Hydroponic Growers Choose CANNA Clay Pebbles

• 🪨 Premium baked clay construction — durable, stable, and built to last across multiple grows
• 💧 Perfect moisture and nutrient distribution — the porous structure holds just enough water while draining freely so roots never sit wet
• 🌬️ High air retention — keeps oxygen flowing around your root zone for faster, stronger root development
• 🔬 Low soluble salt content — safe for recirculating systems with no salt build-up between cycles
• ⚖️ pH-neutral and inert — won't affect your nutrient solution or pH, giving you full control over your feed
• 📏 8–16mm pebble size — the ideal range for root support, anchoring, and adaptability across different system types
• ♻️ Reusable — clean and sterilise between grows to get multiple cycles from one bag

What's in the Bag

Each 45 litre bag contains premium expanded clay pebbles, kiln-fired for consistent porosity and structural integrity. Sized between 8–16mm for versatile use across hydroponic systems, net pots, grow beds, and as a drainage layer in soil and coco pots.

Compatible Systems

• ✅ Recirculating hydroponic systems (NFT, DWC, flood & drain)
• ✅ Run-to-waste drip systems
• ✅ Net pots and deep water culture setups
• ✅ As a drainage base layer in soil or coco pots
• ✅ Aquaponics and indoor garden beds

How to Use

1. Rinse pebbles thoroughly with clean water before first use to remove dust and fine particles
2. Add a 4cm base layer of clay pebbles to the bottom of your pot, grow bed, or system container
3. Position your plants and fill in around the roots with additional pebbles for stability
4. Set up your top-feed system — drip, sprinkler, or brush-based
5. Adjust watering frequency and flow rate based on your plant's growth stage and environment

Storage & Handling

• Store in a cool, dry place away from direct sunlight
• Keep sealed until ready to use
• To reuse: soak in a mild sterilising solution, rinse thoroughly, and allow to dry before the next cycle

CANNA Aqua Clay Pebbles pair perfectly with CANNA Aqua Vega and CANNA Aqua Flores nutrients for a complete recirculating hydroponic system.

⚠️ Bulky Item — Additional shipping charges may apply for this product. You will be contacted after purchase if additional freight costs are required.