I think it's too hot for my D. prolifera in my lowland terrarium. The days are in the high 80's right now, sometimes reaching low 90's. 80-95% humidity, it's planted in LFS. Good air circulation, too. Metal halide lighting but the D. prolifera is off to the side so it gets just enough light.
The leaves are growing in smaller/shorter but they are also pointing downward and sometimes dying then. I took it out of the terrarium and put it in the windowsill under a French garden cloche. It's in shade. I put a thermometer in there so we'll see what the temp is later. It gets light morning sun (very light).
edit: hygrometer says humidity is 84% and temperature is 75. It's about 1 o'clock here. I reset the min/max readings so tomorrow we'll see what the damage from the sun is under the cloche. I don't think it'll heat it up bad. it only gets very weak sun during the early morning and for the rest of the day it's bright shade in the window.