The Zoo Med Naturalistic Terrarium Waterfall Kit makes it easy to create that authentic waterfall you ve always wanted in your reptiles habitat. No tropical habitat is complete without a waterfall and with this innovative simple kit you ll have yours in no time. Incorporates a beautiful waterfall feature in your terrarium Unique design creates a waterfall out of existing decor Simple and intuitive to set up The idea: Water is pumped over a decorative item (sold separately) then percolates through substrate layers and back into the pump. The benefit: Builds a beautiful natural-looking tropical terrarium. The moving water helps retain humidity and provides a water source for tropical animals. Kit Includes: Water Pump Hydroballs Terrarium Mesh Plastic Tubing and Plastic Elbow and Instruction Book. Note: You will need a Cork Background and/or Mopani Wood to complete this feature (not included).