thb, rt 4 is probably worth looking at if you arent expecting to buy anything. they have monsterfish and tons of salt water tanks but they are a general pet store. Their tanks are overstocked and their fresh water fish lean more towards the aggressive species. They do carry exotic plecos from time to time but their prices are at a premium as you would expect.
The shops i would recommend if time were short are absolutely fish, ridgewood aquarium imports and fishtown usa in ramsey. fish hut is okay as they do import exotics from time to time, they have pristine tanks which arent over crowded and their prices are reasonable.
"I am Groot", the faithful protector