I just bought 3 corys and 4 blackskirt tetras which are in a 10g QT tank. One of the corys is kind of laying on its side. They looked fine in the store, so I don't think its swim bladder. The tank they are in is cycled, plus I added a little bit of prime just to be safe. I've bought fish from this store in the past with no problem, and fish were acclimated carefully, the same way I always do. (Even so, the temp in my tank is a little low, about 72, which is my only guess...)
Any other ideas??
Any other ideas??