I live over in anderson.
I often go to Uncle Bill's on 141st and SR 37. They have a good variety of plants and fish. The coolest thing is that sometimes they don't even know what they have. I've gotten some pretty pricey fish that were mis-identified.
Petsmart has been doing better. look for the plants on the endcaps in the pouches, STAY AWAY FROM THE TUBES. If they looks healthy, go for it.
Then if all else fails, I go through aquabid.com for my plants and shrimp...