In NJ... here are a few...
Animals and Things, Route 9 North by route 35, Woodbridge, NJ, 07095, phone 908-855-8515 Big store with big selection of fish.. They redid the reef section and it is quite a mess. I was there last month and after 10 months it is not looking good
Absolutly Fish, formally AquaTropics, Route 46,west, Clifton, NJ, 07011, phone 973-365-1081.This is a big store with employees who either are hiding or do not have a clue. Great selection of Salt Water inverts and fish, but the prices are very high. The nicest things are in the "show" tank and you can't buy anything out of it, not even a frag. They have lots years of salt creep build up on the plumbing and it looks horrible. I must admit.. I have not been there since the change in ownership.
Atlantis Aquatics, 206 Second Street, Dunellen, NJ, 08812-1313, phone 732-752-7267 Atlantis Aquatics is a coral farm run out of the home of an avid reefer. Though he does mostly mail order, he will allow visits by appoinment only. The coloration of the corals he sells is incredible. Nicer than any "store" in the state!!! They also carry High Tech Drygoods now.
Hanover Pet & Aquarium, 200 R.T 10 West (inside RX place shopping center), East Hanover, NJ,phone (201) 386_0885.Upon my last visit the store did not look in the cleanest of conditions. A slight disapoitnment to the ethusist. Big selection though.
Ocean Gallery 2, Rt 22 East, North Plainfield, NJ, phone 908-226-1100. This store has one of the bigger selections of fresh and salt water fish in the area. They have a large reef system and maintain it pretty well. They keep their tanks clean (most of the time) and seem to do regular maintenance. Nice friendly service and most of the staff is very knowledgable.
Pet Shanty, Rt. 22 (East Bound), Scotch Plains, NJ. The invert systems had a majot overhaul recently. 2 300 gallon tanks, but they mounted the lights 5 feet above the tanks and they look poorly lit. They are in a sorry state. The Salt & Fresh Water Fish are still looking pretty good.
Tropiquarium, Rt. 35 South, Ocean Plaza Shopping Center, Wanamassa, NJ, phone 908-922-2300. Fair Dry goods section. Large selection of reef inverts, Large selection of marine fish. Not to many people there know what they are doing.
Underwater World, 209 East Westfield Ave, Roselle, NJ, phone 908-241-6630.This store is dedicated only to salt & freshwater fish and inverts. It has to be the nicest looking fish store in the state. The tanks are well maintained and very alive. Unfortunatly... It is a one man operation and the owner is a nasty guy who doesn't seem to care about you. Prices are outrageously high but the livestock is very healthy