Yes--the biggest issue is feeding, and tank mates. Most people keep them in a species only setup--often as the only fish. They are like lions--anything that will fit in their mouth becomes a meal. Since they can eat fish 2/3 their mass, they are formidable predators, and will cannibilize smaller frogs.
We're going to try keeping him in the FO 120--if that doesn't work, he'll move into a 29 by himself. Biggest worry for now is that he won't be able to compete with the trigger for food--he hunts by waiting for food to get close enough that he can gulp it down, so I'm not sure if the trigger will leave food alone long enough.
