Okay, I tried the water in a bowl but didnt work i didnt have anything big enough i think for that to work but damp towl sounds like itll do the trick. Thanks for the tip.
Put the towel, or multiple towels and/ or bowl of water in front of your fan, the moving air will help.
If your temp starts going up, try replacing the bowl of water with bowl of ice ( also in front of the fan).
I agree with hotbox, more light wouldn't hurt, as long as you don't cook them.
You might also check out EBAY or Craigslist and try and pick up a cheap used humidifier if it's too bad.