So im new to the whole monster fish owning, very new. I found a guy who claiming that he is selling 3 black tip sharks. He told me that they are 7in's each and they are in one tank. By the sound of thing the tank doesnt seem like its bigger than 200 gallons. From everything i have read everywhere black tip sharks are large, like 5 feet large. So is this guy confused about the type of fish he has, or is there somthing that i missed. Also how complicated are they to own? any help would be appreciated, thanks.