I want to have a level for my tomato frogs which I have now and two other levels on this pet shelf that I'm having built. The second level down I want to have some fire belly toads and the final one a pacman frog. My living room is in a space where light can come in but my room mate prefers the blinds closed so even though these species don't tend to need uv if they have natural light I don't really have it. The exo terra dimensions for each tank are 24"L x 12"H x 18"D. My plans so far is to have the insides 26" wide to accommodate the length. The pacman is going to have at least 7" above the tank to accommodate for a 5.5" ALT's heat lamp on top of it. I saw a Zoomed dome light but the dimensions look to be 10" high. I don't want the total height of this to be greater that 72". The tomato frogs I am getting a Amazon.com: Zoo Med ReptiTherm® Under Tank Heater, Medium: Pet Supplies but as without having NL what light fixture should I get on top that is inexpensive and small? For the Fire bellies, can I use the heat pad for them as well? And should I go with the same light fixture option as the tomato frogs? My last question is what kind of rheostat or other temperature control option should I get? Looking for a good/reliable one that's not too expensive. Thanks for everyone who reads this.