Semi-Hydroponics : A new way to pot orchids - Orchid Bliss
LECA pellets do absorb fertilizer salts. To get around this fertilizer salt problem, this is what I do: When watering I rinse the LECA with clean water, without any fertilizer. After the LECA has been rinsed, I add water with 1/4 strength fertilizer to the pot. Re-Using LECA. LECA pebbles can be reused as it is made of inorganic material.