How to Use Hydroton (Expanded Clay Pellets) in the Garden | Trees.com
Shelmerdine Garden Center - Lightweight Expanded Clay Aggregate (Leca) are baked clay balls that expand when you soak them in water. They're great as a medium for plants to grow in as
How To Use Hydroponic Clay Balls To Grow Plants In Your Airgarden
COLORED CERAMSITE for Gardening – Expanded Ceramic Clay Balls for Hort – The Urban Gardening Shop