I have used a variety of this product for years. We always called it Aliflor. Some people buy itunderthe trade name Leca. It is a big part of hydroponic growing and some orchidists use it to grow 'semi-hydro'. I use it as the false bottom layer in my terrariums, and also mix it into the potting mix for terrestrial anthuriums and philodendrons. I have a lithophytic anthurium (Anthurium reflexinervium) that grows totally soil-less in Aliflor and Lava rock chunks
