I'm conducting a D. capensis low humidty experiment, I also have a Mexican Ping. in the experiment. I placed these 3 plants in my kitchen windowsill about a week ago on a tray that has washed gravel on it. The humidity varies from about 35% to 45% depending on whether water is boiling on the stove or the kitchen sink is running hot water, or if the dishwasher is running. When I first moved these from a terrarium to this windowsill, all of the dew on the D. capensis dried up for 2 days, but now it is slowly starting to come back, as you can see in the 2nd picture. I will keep the forum updated over the next month or so as to the results.