I think alot of us get real excited at the thought of keeping a shark and think "oh, I'll start him out in a 240 and upgrade in a few years when he gets bigger" but then you think about it and realize that when he gets that big, how in the heck can you move this thing without investing an unspeakable amount of money on a permanent setup for him? It really isn't something you should do untill you are ready for that type of responsibility.Just a thought!