the lfs doesn't keep any of their fish in the proper parameters consciously, if it lives it lives to them, and if it dies then **** em is what they think of it.
they have a cookie-cutter minimal sustenance for every fish they got, same ph on the fresh side of their store, same salinity throughout the cubicles on the salt side.
meaning, you'd prolly do the fish justice to buy it now, given you are paying the least bit more attention to what it needs.