I wouldn't put certain emotional or human traits pass fish, they are more complex then we think, so I like to believe. I'm not sure if you seen it, but my curupira protects my smaller bichirs specifically, and even the larger ones time to time from me when I get close to them on the outside of the tank obviously (during water changes he lets me pet him lol). I posted a thread showing him coming from across the entire tank to flare at me when I was looking at the ornate, it took me a few times cause it wasn't the first time he did it, that just happened to be the time I was prepared to capture pictures. I've seen wolves referred to as guard dogs of their tanks many other times as well, specifically aimara, so I mustn't be the first to experience this. There is an old YouTube video now, of a female umbee, acting as if she was mourning the death of a male umbee she was paired with for a number of years. I can't remember his YouTube name but his name is skip and he's a breeder for cichlids I think it's like fishlaw with some numbers. Anything is possible though, right?