Leca are expanded clay balls which provide great aeration for your house plant roots. They can be used as a grow medium for hydroponics or semi-hydroponics. Also can be used to root or propagate plant cuttings, soil topper or mixed in with soil to create more air for your roots. Great for Aroid plants!!! I use this medium to mix with my personal organic soil less mixture and my plants thrive!
May deter fungus gnats!