I just got five FBTs this week. I'll post some pictures of the set up when I can.
It's a large exo-terra 95cmx45cmx45cm with a thick layer of Eco-earth substrate on top of some pebbles and charcoal, with some moss and large pebbles, cork bark and some fake ferns.
I piled the earth to make a varied terrain with some cave like hollow areas under the ferns and bark at the back and they seem to like it there.
There is a large seed tray with water and rocks with a fern and piece of bark providing a sheltered area of water.
Temperature is about 22 degrees on average, 19 at night with 75% humidity on average.
One is definitely a male and is quite vocal.