Lightweight Expanded Clay Aggregates (LECA) are a top choice for growers seeking a reliable, long-lasting, and efficient medium. These small, porous clay balls are superheated to create a lightweight structure that offers multiple benefits—especially in aquaponic systems.
Why Use LECA?
Its excellent drainage and aeration properties help prevent root rot by retaining moisture while still allowing ample airflow, promoting healthy root development. The porous surface area also supports colonies of nitrifying bacteria, which are essential for converting fish waste into usable nutrients for plants. LECA is both reusable and low-waste—durable enough to withstand multiple growing cycles and easy to clean, making it a cost-effective and sustainable choice. Being pH neutral and chemically inert, it won’t interfere with water chemistry, ensuring a stable environment for both plants and fish. Additionally, LECA is lightweight and clean, making it easier to handle than gravel, and free from pests, pathogens, or organic decay.
Leave a comment