I actually almost bought one of these a while back and thought it would make a great dart tank. I wanted to put a limb in the center and cover it with bromeliads and then have substrate all around the limb. This way you would have a 360 degree view of the tank/frogs. What kind of opening does it have? Is it just in the top? Could you put some fiberglas screen over it? If excess water is a concern in the bottom, you could always drill a hole and put in a drain. I have been using PVC and nylon fittings to make my own bulkheads for this. You could use a floor lamp to light it and put in a 5000K compact fluorescent bulb or you could hang a fluorescent light above it. I have used undertank heaters on small acrylic tank before and had no problem, but if your room is above 68 degrees you should be fine.
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Ken
Peace of the Tropics
www.PeaceOfTheTropics.com
Bastimentos pumilios
Blue jean pumilios
BriBri pumilios
Intermedius
Lamasi
Imitators
Ventrimaculatus
Fantasticus
Aurataenias
Vittatus
Tricolors
Auratus
Red trivitattus
Green trivitattus