I went to my Petco for the first time in a very long time and was pleasantly surprised. Their fish section was huge and well maintained. All their fish were healthy and didn't seem to be too crowed. They even had some really nice-looking plants. When I was there, they had this huge tank set up with all of the fish people had returned. They were charging $1 for small fish and $5 for large fish. It was an interesting concept, and it got me wondering if it was just my Petco doing it or if it was all of them.