The petsmart here in charleston WV isnt too bad, a couple of the sales staff has some fair knowledge, the tanks are normally clean, the pumps running at max capacity, and the fish seem to be well fed (in most casees) the feeder tanks are the only ones in poor shape, and i think its cause tey overstock them, they need atleast two more tanks to spread the feeders out alittle, since they only stock feeder goldfish they tend to have 500 or so in each 20-30 gallon tank, otherwise they are pretty fair, there were only 4 dragon gobys in a tank, and 10-15 african cichlids (small ones) so they seemed to be alright.
ive purchased a couple pleco's and pictus catfish from petsmart, i think my firemouth came from petsmart and a couple others, but i try to have the LFS order the exact fish i want, but the vendor rarely sends the stuff i want.....
Now walmart is a totally different story, ive seen 30-40 2-3" south american and african mixed cichlids in a 10-15 gallon tank before, it was nasty, half their fish had ich and the other half looked so thin they could die at any moment from hunger, just a sad place for fish.
matthew