1/ why are so many Dwarf chameleons WC?
There is no money to be made on them so no one breeds them - so for the most part, WC is all that's available. However I do breed and sell them.
2/ What kind of substrate is good for a planted terrarium?
I like to get the substrate from vivariumconcepts.com - I also mix in sand. That ground coco fiber can work but it has its own issues and doesnt look very natural.
3/ Do dwarfs eat their plants the same way other chameleons do? if so, what plants are safe?
I have never seen them intentially eat any plant matter. So some poisons plant are ok like croton - stay away from anything that could cause skin and eye irritation.
4/ i know they can live in small groups, but can members of different species live together?
Its never a good idea to mix species and only one male per enclosure unless its a larger, heavily planted tank - ie - I keep 2 males in a 50g with 4 females.
-roo