I had one years ago, named Queen. S/he was almost 3 pounds and ate everything I offered her. Housed her in a 125 gallon tank.
When she died she was almost having a seizure. Her back legs were kicking strait back, but she wasn't moving. I was 14 at the time and actually held her until she passed. It was very sad. I still think about her and had thought about getting another.
She was an amazing frog