dude that myth was busted like ten years ago. Actually goldfish
have a memory-span of at least three months and can distinguish
between different shapes, colours and sounds.
In 2003 University of Plymouth student trained goldfishes to
push a lever to earn a food reward but the lever was fixed to work
only for an hour a day, the fish soon learned to activate it at the
correct time.
People were told they had a 3 sec memory so they would not feel
guilty about putting them in a small bowls, btw, research shows
that goldfishes that are kept in bowls have shorter lifespans..
