Here's the web link:
http://www.greenwichaquaria.com/
1064 East Putnam, Riverside Ct
They have a very nice selection of marine and fresh water specimens. The coral selection is very nice (SPS, LPS and softies) and the marine fish selection carries a lot of uncommon (to retail trade) fish. Their "living room" display tank is amazing (even have sand eels).
They also have a nice but small fresh water section including some very nive planted tanks.
I liked the invert section as you can find some nice critters.
When I was there, the store was busy so i didn't have the opportunity to speak with anyone about their store. However, I had my 4 and 6 years olds with my and they liked it better than the aquarium (Brookyn and Norwalk). They especially liked the free cookies and milk they enjoyed while sitting on the leather sofa watching the big tank.
As far a prices go, it not cheap. If you are looking for discount corals that need to be rescued from someplace...look elsewhere. If you are willing to pay premium $$'s to allow you to see the corals/fish/inverts you want and not pay shipping charges....its worth the trip (especially if you make it a stop between home and the Norwalk Aquarium or Norwalk Childrens museum.....you can also compare contrast with House of Fins (in Greenwich).
They have a small selection of premium dry goods as well.
Keith