For a big setup like that, go find a Large South African variety of Pyxie frog... A large male (~9inches SVL) will run some money, but they are definitely interesting and make use of water features. They can eat pretty large rats too. The South African variety can survive more extremes in termperature so that's why I'd opt for one.
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1.1 Chocolate Leucomelas
2.0.2 green and bronze auratus
0.0.1 D. truncatus.
3.2 K. Maculata
0.0.1 blue white's tree frog
0.0.1 suriname mossy tree frog(looks like birdpoo LOL)
0.0.5 Vietnamese mossy frogs
0.0.1 Pyxie frog
1.0.0 95% Green Ceratophrys Cornuta(looking for more greens!)