LFS's in Lincoln
Well here in Lincoln if you want healthy fish you can either hit Fish World on South Cotner in the Piedmont shopping center (my preferred LFS) or Fish Store on north 48th street (2 blocks north of Vine street). Fish Store has a little more impressive saltwater setup and the store looks nicer, but Fish World has a more knowledgable staff of long time fish keepers. If you go to Fish Store in the evenings your likely to get help from staff that doesn't keep, or haven't kept, fish for a long period.
Neither stocks a great selection of plants, but some of the employees at Fish World have high-tech planted tanks and can share information at least.