Hi, fellow Kansan! I have tried to find a good aquarium store in Wichita, but the only one I know of that is left only does saltwater. I think I know the one you are talking about that was for sale, I bought fish from them years ago. I was sad to find that they had closed since then. I haven't had much luck in other towns, either. I found one store that otherwise seems pretty good with fish, but they still sell bettas in vases.
I agree with what others have said, just get information here and either order online or go to the petstore already informed so they can't steer you wrong.