This is where my 1.2 trio of Crested Geckos reside, it is a 30 gallon long aquarium, the bottom layer is 1/4" gravel about 1/2" thick, the planting medium is 1 part washed beach sand to 2 parts coir, with loosely mixed in dead oak leaves, and 1/4" gravel. Plants used are creeping fig, cryptanthus, and what I know as Chaladium *sp*, I will soon change that name once I know what the actual scientific name is, the wood in the middle, and the moss was collected. The rock on the left hand side is actually a geode, cork bark is used in the back left corner as a hideaway, and in the back right corner to add depth to the terrarium. 
Above: My two female crested geckos hanging out on a piece of driftwood. 
Above: Male Crested

In foreground you can notice the geode despite being completely out of place for a natural setup I think that it adds an interesting texture and color to the overall viewing of the setup. 

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