In Suffolk county there's aqua hut in pt. Jefferson on rt. 112 large LFS . Also a smaller LFS called Suffolk aquarium on Lincoln ave in Holbrook. also I do well buying my live fish at pet co. In Patchogue - I just check the stock over real good for ich. As for Nassau the is a large aquarium store ion rt 27 in either copiague or Freeport or maybe massage qua. I hope this helps!