I just got my betta from Walmart in Circleville Ohio last Friday. Most of the bettas looked healthy from what I could tell. Several of the cups had huge bubble nest blown in them. The water for the most part was clean with the exception of some waste at the bottom of the cup. All of the tanks were clean and he fish looked healthy.
Last time I was there (5-6months ago??) The fish looked fine, not near as many bettas as they have now. There was one exception though, one of the tanks that housed puffer fish had some fish in it that had tail rot.
I am betting that my experience this time was just from new shipments but one can only hope that they truly did improve.
I live in between both Circleville and Lancaster, both are about 15 min away; about 30 south of Columbus.
The Walmart in Lancaster does not carry live animals. They do have a fair pet section though. Aquarium section is stocked like the stores that carry fish, they have all of the medications, etc.
Last I heard Walmart was loosing its right to carry fish because of the poor living conditions most stores would house the fish in. I remember reading somewhere that most Walmart stores have their tanks set up on one main system. They would order fish to stock their tanks and the fish would have parasites and other strands misc. strands of disease. Because the tanks were filtered with one unit, disease would rapidly spread from one tank to all and the fish would die.
As for Meijer, the store in Lancaster has improved over the past few years. I barely see an outbreak of disease. The fish are much healthier looking as well. Bettas on the other hand...well there can't be much said on the quality of care for them. That Meijer hasn't had bettas in a while and they only order half a dozen every now and again.
~ Everything happens for a reason ~