I'm going to start a Viv build as a upgrade for Grif. I desided to use the Exo-Terra 18"x18"x18" due to it having ample ground space and since these Terrariums are very efficient at holding in heat and humidity. Plus the double doors make for easy cleaning and feeding. I also chose this particular size because its not too tall, but should be a good size for live plants to grow.

I'm going to make a drainage layer composed of Hydroballs and possibly install a pump in the drainage layer of hydroballs to pump out excess water.

Any ideas and or suggestions will be appreciated due to this being my first Viv build rather than just a basic terrarium setup.