Do golgfish really have a ten-second memory?

i have read this article at Reader's digest.this article is about the memory of goldfish. a goldfish are able to remember their owners because they swim to the surface expecting food when the owner approaches the tank.They also get disoriented if you rearrange the objects or plants around them. that's true because i'm also have 2 goldfishs when i was a kid. its really funny when the goldfish follow my finger when i let my finger around the aquarium.