But you can also have more if you wish; just don't overcrowd it with too many hides. … Add some low branches, such as grapewood or driftwood branches. How to Build a Leopard Gecko Vivarium/Terrarium An alternative to a tank style cage is the vivarium - an entire ecosystem for your pet to live in, including live plants that grow right in the cage. This means that there should be less lighting in the evenings and so on. This image may not be used by other entities without the express written consent of wikiHow, Inc.