yeah im down in wilmington to and i think it really depends on who is working that day there is one guy at petsmart and one at petco that are very knowledgable that whenever i ask questions the other employees always gets them for me, but other than that the other staff arent very knowledgable i went into petco one day and like 5 of their clown fish and a yellow tang had ick, i told one of the people and he was like "oh ok thanks" but then never went and did anything, they do have a larger variety though, i think down here petco might win by a very small margin IMO but they are a little more expensive with certain things