Zoo Med's Tropical Bioactive Kit provides an ideal substrate base to start a perfect bioactive setup for your terrariumThe Bioactive Kit includes ReptiSoil, Terrarium Moss and Catappa Leaves that is used to create a foundation for a miniature ecosystem used to house live plants, invertebrates and microorganismsIncludes ReptiSoil (4 Quarts), Terrarium Moss (10 Gallons) & Catappa Leaves (20 Leaves)