The majority of the time, I go to the Salty Critter in Vermillion although they typically have a much larger selection of inverts than fish. Aquatic Technologies has a decent selection but is pricey. Occasionally you can get lucky at RMS as they are usually very low priced. Although I recommend QT all new fish, I would especially QT anything that comes out of their tanks. I believe they get shipments on Tues evenings. If you time it right, you can sometimes get stuff as they unpack.