Here are pics of one of my vivs, we make it yeaterday ->
http://www.ssnakess.com/forums/elaph...tml#post966401
1. Normal soil for plant is perfect, there is no need for all the "special" bio active, or "reptile" soils...
2. Like I said I just use normal soil for plant, but you can mix it with coco fibre or something like this (i.e. few inches of soil at the bottom, and then few inches of coco fibre on it... it all depends on what you like
3. I'm just watering it every 2 weeks, because humidity is really good, and the plants don't need more. And of course I spot clean when there is a need for it (reptile poops, withered leaves etc).