The bottoms of the tanks are usually recessed slightly. Combine this with some little rubber feet at each corner and you should be good to go. As for my own, I am currently using a zoomed 8w uth, controlled by a dimmer...no thermostat. Far from ideal with swinging ambient room temps. I'm getting out of glass and into an Animal Plastics T8, divided, with Pro Products radiant heat panels, controlled by a Herpstat 4. I'm stoked, as everything should arrive next week. Time will tell if I need to add a UTH. If I do, it will probably be something thin and hot to heat 1/2 PVC. Good luck on your setup...there are a million ways to skin a cat.

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