Great video and I agree! My fish sure know who I am and where I feed them in my tank. When my fancy goldfish are hungry they go to the top of the water and make slurping and sucking sounds until I come to feed them. They definitely respond to me differently than they do to other people. I have an 8 foot long tank and they follow me any time I walk by.
Thank you so much, my friend!!! It's true... I witnessed it just today. I was in my local fish store and a friend and I were just looking at the discus. They were acting normally, until the owner passed behind us. You could see them following him. 😅