Sure, but I would recommend a larger tank, especially considering how large these fish can get (~12" or more). I also assume you are not keeping smaller tank mates, correct? As far as habitat, I recommend keeping a large overhang/cave in a prominent portion of the tank to allow these fish shelter during the day (and so that you can still see them). Make it large and preferably deep (and as dark as possible). I guess the last thing would be to make sure filtration is strong, considering how these active carnivores do put off a good deal of waste. Would make an impressive display, though.