Its sad but you should give the fish store a little more credit, fish stores do not make all that much money and barley cover the expenses as it is. Fish stores can not afford paying a professional who would know what is he talking about and are left to hire kids without any experience who would be willing to work for around six bucks an hour. I think that people should do more of their own research and do not come to the store and expect the persont to teach them everything there is to know.
I used to work in a fish store and pay and customers was the reason I left. Pay is obvious but customers.. oh my God. People would come in an argue with you why the hell did they spent their 13 dollars on a 10 gallon setup and now they cant keep two of their Oscars in it?! Or why cant they setup saltwate with those 13 dollars that they have spent. Or why the hell do we charge so much for a $1.33 fish. Once again, people need to understand these things and do their own damn research and not ***** at you for their ****ups. Sorry for the language.