I can tell you this, if you are thinking about buying a barracuda for a tank, I would definitely think twice. Living in Florida, I have seen many barracuda, snorkeling, fishing mainly. They are a really cool fish, very cool looking, but they get HUGE. They can get to about 8 feet long, even if you were to get a small one, and decide to sell it later, that fish will most likely eat every other fish in your tank. They have some huge teeth.