Both the PetCos and PetSmarts around here are about the same regarding fish care, knowledge, and selection. They both take poor care of their fish, which makes me mad. The employees also don't know anything about bettas, or any fish or plants. Heck, when I first started out a PetSmart employee told me gold ribbon and white ribbon plants are aquatic, and that she'd had them in her tank for months and they were doing fine. I did a little research when I got home and found the truth in five minutes! As for selection, it's pretty hit or miss. I got all my sorority girls from one store or the other, and they're all quite pretty for pet store bettas. They both have an overload of reds and blues, but I've found lots of different colors there, including a purple girl!