Hawkfish3.0;1708342; said:Pavlov did a conditioning experiment with dogs. The dogs were conditioned to respond to the ringing of a bell. The dogs heard the bell and began to salivate at the anticipation of food.
Your fish have been conditioned to respond to the visual representation of the yellow can as a source of food.
It's not that fish are NOT intelligent. This is just more of a case of conditioning.
Exactly! This is Classical Conditioning 101.