For about 2 months I had a small 10 gallon tank setup
running for my kids.
I bought all of my fish at PET SMART

They seemed nice
& I had NO problems with them or the fish.
I went to by the last 3 fish (3 neon Tetras) at PETCO! They Suck.
Withen 12 hours 2 fish dies. OK these are not high price fish.
But The employees at PETCO suck they treat you like a child! I went
back without the fish or water sample.
I tried to explain to the guy that my water was fine. If I had bad
water my other fish would have died. I wasn't going to keep 2 dead
fish around for 7 days because I am too busy with working to run back
there the next day.
My tank had (2 zebra dano, 2 platy, alge eater) Not an overstocked
tank!
PETCO NEVER AGAIN!