In my tank, it is 100% sealed glass for highest humidity. The humidity is always higher than 90%. The issue though is heat. I'm using 2 13w compact fluorescent bulbs and 1 20w tube bulb (which is cool enough to touch. The CFLs both heat up to 104f each while the tube heats up to about 95f) and i'm worried about tank temps. My tank is a 20 long vertcal, so I need good lighting to reach cuz I have plants in the very bottom. The temps down there are about 75-78f during the day and at the top it's about 85f during the day. The whole tank cools down to a comfy 73f during the night. I'm really worried that if I put frogs in they'll die. I don't have AC and I can't buy AC, but i've tried putting a pitcher of ice infront of a fan, a fan, and even a pitcher of ice in the viv. No help. Any ideas?