A sad but true video. I have personally seen conditions in pet stores as bad as these. They aren't just isolated incidents. Needless to say, I don't buy anything from stores like this. Your strongest voice is with your dollar. If you don't support these places, they won't be able to stay open.
The author of the second video now runs a betta fish rescue program called the Spartan Betta Rescue Program where she takes unwanted betta from pet stores and owners. She treats their injuries and illnesses and then adopts them out to caring homes. Her website also has tips for good betta care and a great fact or fiction section.