Many of you are suggesting locking them in some sort of case...
The problem is that the entire store would have to be rearranged, and the cage would be expensive. Corporate tells the store how to do something, and that is how it happens. End of story. I've only had this job for a month, so i'm not quite in the position to be telling them where to spend money on new stuff. I will be transferring to a different petco in the Summer.
Moving the fish closer to the cashiers is a good idea, but there really isn't any space and all of the betta advertising is in the back of the store too.
It's a very difficult situation all around