How many seconds can fish think before they forget you know their brain span?

Fish can remember from 10 seconds-a lifetime.

Scientists belive that fish can only remember for 10sec.

but I know that every day my fish loves me and remembers me I also taught him tricks and how to play soccer, so I know that fish can remember just as long as humans can!!!

I think recently scientist have discovered that a fish can remember for months. Scientist said that this guy made a noise when he fed them and everytime the fish hear it they swim towards him for food.