YES, door number two! And perfect for a specimen tank...jacobus said:i really like the frog .. i thought of 2 options ... 1. i keep it in my main tank. feed it well. hopefully it wont eat anyone. 2. i set up a smaller tank for it and it only. i think i like option 2, but what size tank is ok for the fish ? right now .. i guess its at 2 inches long.
IMO you should be okay with a 29 gal... at least for a while. Some of the Frogs get pretty big, but they are sedentary so you should be good for a while.