Ok so I have a small cupboard op going down. Basically one plant is receiving 2x 46w cfl's, and 1x 23w cfl. The temperature is slightly high; it averages around 27-30C, and the humidity level stays between 24-29%. With the cupboard doors open, we have a fan cooling the temperature; to keep it below 30C. But having the doors always open reduces the humidity. We have looked at the Vick's Cool Mist humidifiers but the space is so small we don't have room for it. We have been adding water and wet towels for humidity. Basically we were wondering, do you think adding an ice cube tray would slightly increase humidity, and slightly decrease the temperature?