shedd aquarium: Hi im goin 2 a shedd aquarium in chicago this week and i was wonderin do they have fish that last long that u can keep as a pet plz let me no as soon as u read this thank u.|||no. public aquariums are not pet stores.|||No, they dont sell any fish but they have a very beautiful collection of a huge variety of fish. The reef and oceanarium exhibits are also worth the extra charge to see. That being said, there are lots of quality fish stores in and around the Chicago area that do sell fish.|||Actually, yes one can, but it is unlikely that you will be able to do so. To get fish from a public aquarium, one needs to have some kind of fish that the aquarium does not have but really wants. Then you can trade with them. Being a member of a national/local fish club and arranging a "behind-the scenes" tour could possibly shake loose some fish.