How to Make Hydroponics Clay Pebbles at Home [LECA, Hydroton]
Lightweight Expanded Clay Aggregate () – often referred to Hydroton or clay pebbles – consist of balls of clay that has been superheated (in a rotary kiln) from anywhere between 1100 to over 2000° process causes popping, which creates the pebbles'' characteristic pores. These pores, in addition to the spaces between pebbles, make Hydroton a light and airy growing medium that ...