And here I thought walmart was more of an algae than a fungus. Anyways there are 2 walmarts within 15 mins of where I live. One store is constantly dirty and the tank conditions are right up there with the worst of them. The other is generally a clean store, even the parking lot, and the fish there are actually healthier than the ones I've seen at petco lately. As an example about a week ago I was shopping for a dwarf gourami and after travelling to the nearest big town and visiting 2 petsmarts, petco, and a lfs that is generally reliable I ended up buying the fish at walmart since it was the healthiest one I could find. Speaking in general I've never been a big walmart fan and normally I wouldn't buy fish there, but this one store seems to have it right for now.