We were at PetSmart today and my hubby wanted to buy two more tiger barbs. The tank with the tigers that were of compatable size to be placed in with our other barbswas very questionable. The water seemed cloudy, several of the barbs were head standing, and one had feces ( a long strand ) hanging from his anus the entire time (at least 45 minutes) that we were there. I told him that I did not think that that was a healthy tank and I would be afraid to put any of those fish in our tank. The employee told me that all of the sick fish were isolated in a sick tank in the back, these were just stressed because they came in the Tuesday shipment and that she could catch the healthiest looking fish for us so not to worry. fortunately my hubby settled on some green barbs from a different tank. When the regular fish lady that we usually deal with came over, the first one told her that I had been doing my research, and knew almost as much as her.... whatever... I just know what I have read about picking healthy fish. I think I will stick to going to the LFS even though they are much further away and more expensive. I have been to PetSmart when there were several dead fish in the tanks and I got the same, "well, those are from the new shipment and they just got too stressed.." hmmmph