New World Aquarium(204 e 38th st NY,NY): Nice fish but expensive
Win Tropicals(169 Mott St NY,NY): Very small and cramped, but worth looking, as you may find something you like from time to time(Mostly Flowerhorns and Blood Parrots though)
38 Aquarium(371 Broome st NY,NY): Nice fish especially discus and arowana. Once seen an awesome Midas there. They can be expensive though.
Wonderful World Of Fish(2571 Steinway st Queens,NY) Very nice and clean tanks. They carry most commonly sold fish, nothing extravagant.
Fish Town Usa(19633 Northern Blvd Queens,NY) Excellent selection, and clean tanks. One of my most recommended aquariums. Ok prices too.
Golden Aquatic(7620 Woodside Ave Queens,NY) Awefull tanks, but occasionally get rare fish. Purchase with care.
Blue Gold Aquarium(8612 Whitney Ave Queens,NY) Equivalent to Golden Aquatic. Has some HUGE BP's. I would say better selection than Golden Aquatic though.
Northern Aquarium(135-02 Northern Blvd Queens,NY) Nice selection, and very friendly associates. I would recommend.
Paradise Aquarium(6616 Fresh Pond Rd Queens,NY) Good selection. Very pricey though, and never negotiates.
Bobs Tropical(5745 Myrtle Ave Queens,NY) Full basement full of very nice fish. Very flexible with frequent buyers, and take trades.
Coral Aquariums(7503 Roosevelt Ave Queens,NY) Nice fish, but limited selection. Nice saltwater selection.
World Class Aquarium(2015 Flatbush Ave Brooklyn,NY) Nice fish, but limited selection. Occasionally has rare fish.
Total Aquariums(1706 Rockaway Ave Lynbrook,NY) Nice selection for such a small store, lots and lots of SA/CA cichlids. Great prices, lots of multi fish deals. Recommended
Animal Pantry(13720 Cross Bay Blvd Queens,NY) Nice cichlid selection. Friendly staff.
Ideal Pets(356 e 116th st NY,NY) Ok selection. One of the only places I have seen Golden Flowerhorns. Watch out for the HUGE toruiose walking around( scared the ***** out of me).
Thats all I can remember now. Hope this helps.