I don't know what a 4 second memory is but I do know that no fish have one. All fish learn things like where to get food and who to hide from. So they certainly can't have short memories.
You cut my answering off! but you are right.
Get to your second generation.
'careless memories' s the second single by Duran Duran,realesed on20 april 1981
All fish a 3 second memory
Memories - 2010 I was released on: USA: 4 July 2010 (limited)
Flicker Memories - 1941 was released on: USA: 4 October 1941
Hearts and Memories - 1912 was released on: USA: 4 July 1912
The Division - 2001 Book of Memories 4-8 was released on: USA: 14 March 2004
Anything But Love - 1989 Angst for the Memories 4-14 was released on: USA: 5 February 1992
This is a myth, they have much longer memories a whole 45 second memory. This has been proven in experiments, and on an episode of MythBusters.
4
Memories, memories--thanks for the memories!
Fish have memories just like humans, they can remember anything!