there are 1500 petco's, if only half buy 2 yellow tangs a week that is 1500 yellow tangs. Do you know any other store that buys in bulk? Plus you have to add DD and LA in their buying power. A few years ago before LA getting bought by them, Petco sold redsea regal angelfsh for $105. Of course it was like the lotto you just kept ordering until you got one.I still find it unbelievable that a Petco would have one of the most expensive fish that exists.