It's okay, calm down. All it means when an anenome is upside down is that it is looking for food. When was the last time they were fed? Did you ask the store that before you bought them? If not, myabe you should feed him some krill. He's probably hungry. If you don't have krill, or some meaty frozen food, leave him alone. He will right himself back up again when he either finds some food, or gives up on looking.