Terrarium Clay BallLightweight terrarium clay balls (also known as LECA, hydro balls, expanded clay pellets, or false bottom) form the essential drainage layer at the bottom of any terrarium or vivarium setup. They prevent waterlogging, improve air circulation to the roots, and help maintain ideal humidity levels. Perfect for tropical terrariums, paludariums, and bio active enclosures, this base layer supports healthy plant growth and long term stability of the