It really depends on who is working in the fish department. For 3 years my petsmart was really good, pretty healthy fish, clean tanks and the guy, another teen like me was super knowledgeable. He has since stopped working there and the tanks are filthy, fish are dying and the other day when I went there they had treated all of their tanks with copper to kill off the pest snails, thinking the nerites and mystery would be fine! So all of their snails died. Tanks were infected with ich, half of their guppies had dropsy as well as a dozen of the bettas. The cichlids had internal parasites and were super skinny and a plethora of other problems. The manager was talking to me and was saying how much she loves keeping fish and that she has so much experience but all of her info was whack.