Exo Terra Tropical Forest Substrate 8QT The Exo Terra Tropical Forest Floor is a multi layer substrate that allows you to recreate the forest floor as found in natural tropical forests. The forest floor is one of the most distinctive features of the tropical forest ecosystem. Directions for use : Spread 2-4″ (5-10 cm) of the base layer on the terrarium floor. Water or mist the substrate according to the humidity level required. Place your decorative items in the terrarium, than cover the floor with the top layer of decorative natural green moss. Use an Exo Terra Hygrometer to monitor the level. To increase air humidity in well-ventilated terrariums or those with very high humidity requirements, place an Exo Terra terrarium substrate heater underneath the terrarium. Spot clean the bedding on a daily basis, and completely replace with new bedding when necessary.It usually consists of two major layers :The top layer mainly consisting of mosses & lichensThe base layer consists of rich organic matter – usually decomposed leaves & woodKey Features :100% NaturalMulti layer substrateResembles natural forest floorKeeps soil soft and moistAllows your animals to hideNutritional substrate for live plantsIdeal for natural terrarium set-upsHeat-treated and odor absorbingMade from a sustainable resourceCan safely be compostedGreen Moss & Coconut Husk Fiber – 6.6 L (6 qt)