Do fish really have a 5 second memory?

[Belle]

Is there any links to research which proves that fish really have a 5 second memory or is it all a myth?

 

[Graham R]

its a myth...most fish owner know that fish know when they are about to be feed as they see you walking up to the tank...i have one that know the time and looks to see if i have the food container...that is for sure more then a five second memory....there is even fish mazes that fish have be trained like rats to go throe

 

[CatsRcool]

It depends what fish you are talking about. With a goldfish, yes it is 3-5 seconds. However with a shark it is about 24 hours.

Hope I helped