Hi there jen.
Not sure if you have started out your exo terra glass tank set up yet???
but i lled though illed give you an insight in to my set ups on them,
i use the 30x30x30, and there all for ground dewling t's,
i remove the background due to the spiders being able to climb this more easily then the glass and getting stuck on the mesh lid,
i use a normal spagnum moss peat around 1-2 inches think in 3 coners of the tank and them an 1-2 inch think covering of oven baked peat,
for the plants im using mostly dwarf ferns which are cheap as chips and a few other plants which i am un sure of there names, for you set up, i would still use a fern at the bottom of the tank but i would also use ivy, as the will climb around and logs or branches that you have,
hope this helps?????
heres a pic to give you an idea.
