This is one of the best fish stores around. They have a great selection of very healthy fish. This is the only fish store (to my knowledge) that quarantines all of its fish before it puts them out for sale, so you are pretty much guaranteed to not bring home some nasty disease to your tank. They generally carry all of the usual suspects, as well as surprising you with some very unsual species once in a while. They also have one of the best selections of freshwater plants around.
The big downside to this store is that it's cramped and kind of scary. The floors sag in spots and it's very dark. But--the fish are in great health, and they almost always have very helpful, knowledgable staff here.