Do fish have good memory?
I remember reading once that they have no actual memory but their instinct learns from experiences. For instance, baby salmon follow their parents to where they go back to every year and eventually when they lose their parents they can go back by themselves. Common goldfish have the worst instinctive memory, which is where the phrase comes from. Most types of common fish take at least 6 or more experiences to have it ingrained in their instinct, but goldfish take an incredible 24 experiences. This was proved in an experiment where an electric shock was pulsed through a wire with food attached. When the fish took the food they got a tiny shock and eventually they stopped taking the food. Hope this helps!
