After come accross a nice site -->
http://8oaksterrariums.tumblr.com/
I setup this closed terrarium as testing.
The terrarium
Below is details of it
1. container = orchid tissue culture container.
2. base = lava rock + charcoal
Media = cocopeat + sphagnum moss + perlite + coco chip
Plant = live sphagnum moss + emersed aquatic moss + unknown plant
3. Will cover the container most of time. Place it at office window that receive morning sun.
Here is photo of end result as at 2012/02/14