Expanded Clay 3 Litres

Buy Expanded Clay, 3 Liter bag

This lightweight ceramic material is made from special clays that, when fired, expand into porous beads with great physical stability. The internal porosity retains usable moisture without waterlogging, while the hard surface allows constant airflow around the roots.

Thanks to this combination, Expanded Clay 3 Liters works as a hydroponic medium, drainage layer or mixing component with peats and coconut fibers.

In recirculating or drip irrigation systems, the 8–16 mm granulometry reduces compaction, prevents strangulation, and offers excellent grip for growing and flowering plants.

Before use as the primary medium, it is advisable to rinse until fines are removed and stabilize at pH 5.5 for 24–48 h for a more predictable start-up.

The 3L format is manageable for maintaining stock, filling pots, lifting the bottom of containers or preparing A/B tests in small cabinets.

Product available at Hydroponics Blanes , a trusted online grow shop with discreet shipping throughout Spain.

Indoor Growing Expanded Clay 3 Liters

In indoor growing , expanded clay pebbles withstand frequent watering without root asphyxiation and help maintain a stable air/water balance after each cycle. The inert structure does not decompose, does not generate unpleasant odors, and promotes a hygienic environment in propagation, vegetative, and flowering rooms. Compatible with EC and pH control, grow tables, mesh pots, and fabric pots.

What is Expanded Clay 3 Liters used for?

It serves as the primary medium in recirculating hydroponics, as a drainage layer in soil or coco coir pots, as ballast to stabilize tall plants, and as a component for aerating mixes. It also facilitates separation between the pot bottom and saucer, mitigating waterlogging and promoting root development in cannabis substrates .

Expanded Clay Substrate 3 Liters

These are inorganic, low-conductivity expanded clay pellets, fired at 1200°C , that are resistant to rot and mold when handled correctly. The 8–16 mm granulometry provides excellent aeration and rapid drainage, ideal for automated irrigation and recirculation systems. The 3 L format makes it easy to fill pots, raise the base of containers, or set up pilot projects without having to buy large bags.

How do you use Expanded Clay 3 Liters?

In hydroponics: rinse until the water runs clear and stabilize at pH 5.5 by soaking for 24–48 hours. Fill containers or mesh pots and schedule short, frequent waterings, monitoring EC and pH of the reservoir.
As drainage: place a bottom layer of 3–4 cm in the pot before adding the main substrate; improves water drainage and oxygenation.
In mixtures: combine 10–30% expanded clay with soil or coconut coir to increase aeration and reduce compaction in long cycles.
Reuse: remove root remnants, wash thoroughly and disinfect if to be used in a new cycle; dry before the next setup.

Advantages of using Expanded Clay 3 Liters in indoor cultivation

• Rapid drainage and high aeration for active roots and sustained growth.
• Inert and stable : a structure that does not decompose and facilitates precise irrigation.
• Granulometry 8–16 mm that reduces compaction and improves anchorage.
• Versatility : hydroponic medium, drainage or mixing component.
• 3L format perfect for small cabinets, refills and A/B testing.
• Compatible with irrigation automation, EC and pH control.

Price of Expanded Clay 3 Liters

The 3L format offers an economical way to optimize pots, improve drainage, or set up a compact hydroponic system. Check current offers and availability at Hydroponics Blanes , with discreet shipping options and expert technical support for indoor growing .

Where can I buy 3 liters of expanded clay online?

Available at Hydroponics Blanes , your trusted online grow shop in Spain. Fast shipping, expert advice, and a complete catalog of irrigation, hydroponics, and cannabis substrates .

Expanded Clay 3 Liters is a practical solution for aerating mixtures, improving drainage and assembling compact hydroponic systems.

Manageable format, effective porosity and versatile use that fits with Hydroponics Blanes ' proposal: to equip indoor growing projects with reliable materials, accompanied by expert advice, discreet shipping and a secure shopping experience in a specialized online grow shop .