![Amazon.com : Exo Terra BioDrain Terrarium Substrate for Aquarium, 4.4-Pound : Pet Habitat Substrate : Pet Supplies Amazon.com : Exo Terra BioDrain Terrarium Substrate for Aquarium, 4.4-Pound : Pet Habitat Substrate : Pet Supplies](https://m.media-amazon.com/images/I/91aETgr1s1L._AC_SL1500_.jpg)
Amazon.com : Exo Terra BioDrain Terrarium Substrate for Aquarium, 4.4-Pound : Pet Habitat Substrate : Pet Supplies
![Drainage layers for open vs closed terrariums | Terrarium plants, Diy succulent terrarium, Closed terrarium plants Drainage layers for open vs closed terrariums | Terrarium plants, Diy succulent terrarium, Closed terrarium plants](https://i.pinimg.com/736x/9d/5e/7f/9d5e7fba3adae79df8ab8d8efa08d328.jpg)
Drainage layers for open vs closed terrariums | Terrarium plants, Diy succulent terrarium, Closed terrarium plants
![Drainage Layers - Why You Need a Drainage Layer for Your Bioactive Vivarium | Bioactive Basics #1 - YouTube Drainage Layers - Why You Need a Drainage Layer for Your Bioactive Vivarium | Bioactive Basics #1 - YouTube](https://i.ytimg.com/vi/MBBzTxEg6qg/maxresdefault.jpg)
Drainage Layers - Why You Need a Drainage Layer for Your Bioactive Vivarium | Bioactive Basics #1 - YouTube
![Exo Terra on Twitter: "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. Exo Terra on Twitter: "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.](https://pbs.twimg.com/media/E-q3YbGXMAAUyNM.jpg:large)
Exo Terra on Twitter: "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.
![Drainage Layer Substrates For Bioactive Terrariums and Vivariums | NEHERP - Your One Stop Vivarium Shop! Drainage Layer Substrates For Bioactive Terrariums and Vivariums | NEHERP - Your One Stop Vivarium Shop!](https://www.neherpetoculture.com/img/substratebagldl2019.jpg)