Terrarium Draining Substrate.

• Natural, non-decomposable substrate
• Creates a water drainage system
• Ideal for tropical terrariums & paludariums

Exo Terra BioDrain Terrarium Draining Substrate is a natural, nonorganic substrate that allows excellent drainage of the terrarium. It will not rot or decompose like other natural substrates. The optional BioDrain Terrarium Draining Mesh will keep the BioDrain Terrarium Draining Substrate separated from the decorative terrarium top-layer substrate and prevent the different substrates from mixing and contaminating the water. The BioDrain Terrarium Draining Substrate will function as a biological filtration system. The clean terrarium water can then be circulated in waterfalls or Dripping Plants. Use Bio Clean (formally known as Biotize) to speed up biological filtration capabilities.

How to install Bio Drain

An example of a layered substrate in the terrarium using the Exo Terra Bio Drain Substrate and Bio Drain Mesh: