I've seen good and bad from Petco, PetSmart, PetLand.It broke my heart as soon as I walked in.
After buying some shoes at the local shoe store, I walked next-door to the local petco. (I never buy my stuff at petco, but I just wanted to check out the fish stuff they got there.) I walked into the store and I headed towards the fish section.
I started looking at the filters, heaters, and other cool little gadgets. After that, I made my way to the aquariums where they sold their fish.
When I got there, my heart sank. Almost every tank there was diseased. I saw everything from velvet, to NTD; from glo-fish having bend spines due to mal-nutrition, to fin and tail rot. I saw silver dollars with no fins and tails what-so-ever; I saw platies missing fins entirely; a dead, diseased, and decomposing fish in every-other tank; gourami's with no antennas.
It broke my heart to see so many fish in such a bad place. Fish were misplaced, and some were labeled wrong.
Now, I would like to explain something that happened to me about two years ago...
Two years ago, I was still relativly new to the aquarium hobby. I quickly learned to love it. I only had a 30 gallon tank at the time. (now, its a lot more *n1) I recently lost a female guppy. Thinking not much of it, I went to petco and bought a female guppy. When I took her home, I noticed her behavior. After about two hours, I saw visible signs of velvet. Inorder to save the rest of my fish, I took her out, and isolated her. Within only a few days, all of my fish have developed the disease. I lost every one of them.
From that moment on, I boycotted petco and all other petcos. It angers me to go in there again after two years and see the fish in even worse condition than two years prior. I feel saddened by the fish, but I feel like there is nothing I can do. I feel like I want to take all of them, fix them up, and give them happy, loving homes; but it is out of my reach...
Save these fish.