That's an awesome story. I feel like my Figure 8 Puffer would be like that. Crazy how they get excited and remember us. One time I went away for a month. He seen me pop my head around the corner. Went absolutely crazy to see me. I dred the day he passes. Had him 5 years now. My first ever fish.
I agree. It really is amazing how some of our critters actually are like family.