It sucks that aquarium stores sell these fish without clearly informing their customers of the problems they are going to encounter down the road when the fish is bursting out of their little tank. Or, the customers who do get informed and do it anyway thinking they are going to up-size their tank sometime in the future (which often doesn't end up happening) or are just out for instant gratification and just don't care are even more shameful. Selling or buying that cute, little, young bala shark (or other fish that grows big) when are just a couple of inches long isn't doing anyone any favors... especially the fish.
Well... there's my li'l rant for the day.