Mike22cha - I totally agree, just becasue someone comes in and is interested in a shark does not mean they have the large enough sytem with sufficient filteration. If I where you, I would tell your friend to ask for pictures of the set ups before sharks are sold. Its the only and best way to ensure the shark is given an ethical home. Also I would rather have you plan to build a new pond or buy a new tank to rely on your friend. Its really the wrong attitude to have, if you dont plan to have it for live, dont plan to have it at all.