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Is River Sand Good For Plants

Is River Sand Good For Plants

Lightweight Expanded Clay Aggregate LECA is a very popular hydroponics growing medium. Also referred to as grow rock, clay pellets, and clay pebbles, as well as by various brand names, LECA substrate is made by firing round clay pellets in a way that causes the clay to expand like popcorn so they become porous and lightweight, yet still heavy enough to provide good support for your plants.

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