I've got a 10 gallon flat tank, just recently added rocks on the bottom w about 4 inches of of bed a beast. I've got a couple of the plants in a self sustaining plastic container with water crystals. helps the humidity as well. Also i have a half of a hollowed out log wich he backs into and burrows and fills the empty space up. also a rather large but flat water dish with steps and a background. He seems to really like it in there and it cost me about 60 bucks total for the tank and everything. He's either under the log, in the corner burrowed or in his water dish waiting for my to feed him. I'm sure if you wanted to put in a pond if you had some way to filter the big pieces out , it might be nice to look at but, keeping the filter clean once the fat little frogs jump in might be tiresome.