Substrates in natural terrariums have many functions and are not only
there for decoration purposes. They play a very important role in the
determination of the terrarium's micro-climate. Digging and burrowing
reptiles and amphibians have different needs than tree dwelling
species, whereas desert animals prefer yet another type of substrate.
Heat conductivity is important when a substrate heater like the Heat Wave
is used and the absorption capacity will contribute to the overall air
humidity. Exo Terra developed a series of substrates for the dry, humid
and aquatic terrarium, all made from natural materials.