Well, I guess we could drill it, I just really don't want to. It's completely set up and ready to roll, except for the temp. It's also a hex tank that is on a bookshelf between two rooms. You can view it from the dining room or the living room, and theirs nowhere to put a larger tank. The temp is at a steady 78. I would like it to be 72-74. Thanks for the feedback. All ideas are welcome.
Michele