Betta Fish Can Live With Guppies

I was in the pet section of a large retailer when I heard someone upset that a betta fish was in the same tank as other fish because she thought they could only be keep alone. I told her that betta fish can never be kept with other betta fish because they will fight to the death and that is where the name Siamese fighting fish comes from. Betta fish can be in the same tank as algae eaters, guppies (pictured below) or corydorus catfish safely.