I agree that they recognize food and are conditioned in that aspect but I believe that they may be able to recognize the person who feeds them. The Archer Fish was able to recognize faces and knew which one fed it and which one didn't. It's really interesting you should check out the link

https://youtu.be/gN81dtxilhE

I believe frogs to be smarter than fish usually and maybe we are just beginning to until intelligence of amphibians compared to fish.



Sent from my BLN-L24 using Tapatalk