Clay Hydroponic Aggregate Pebbles, 1mm - 4mm

These expanded clay aggregate pebbles measure 1 mm – 4 mm in diameter and are sold by volume (approx. 500 g per litre), making them an ideal lightweight, porous growing medium for hydroponics and other planting systems.

Crafted from natural clay and expanded under intense heat, these round pellets offer exceptional aeration and moisture retention, ensuring roots receive ample oxygen while maintaining optimal hydration. Their pH-neutral properties buffer nutrient solutions, promote healthy root development and reduce the risk of waterlogging and root rot.

Key Features

• Size & volume sale: 1 mm – 4 mm pebbles sold by volume (approx. 500 g per litre), not by weight.
• Superior aeration: Porous structure delivers excellent oxygen flow to roots.
• Optimal moisture retention: Balances water holding and drainage to prevent waterlogging.
• pH-neutral & reusable: Stable growing environment and easy to clean for multiple cycles.
• Versatile application: Perfect for hydroponics, aquaponics, terrariums, orchid pots or as a soil top-dressing.

Shipping is calculated at checkout. All orders will be dispatched from our warehouse within 3 business days. During peak periods, please allow up to 6 business days for dispatch.