Today I took a drill to the acrylic top and added a 1" hole, then tossed a grommet on along with some mosquito netting. I was pretty surprised the 1 " hole worked and the netting tightened the hole so I didn't need to add any glue. I'm hoping one hole is enough to cool down the tank, yet still keep the moisture in. Or should I drill two more?
Any advice would be appreciated. So far I'm really digging the LED lighting since it keeps the top looking thin.