At Petco the other day, a lady was telling the staff guy that she has a good sized Niger trigger in a 55g. An she was tryin to buy a really small yellow tang to go in with it!! The staff was trying to explain to her that was a bad idea and they both need a bigger tank. The lady's looking at the guy like he's crazy!! She didn't get the fish!! But probably just went somewhere else and got one. At least the guy tried.