Do fish of other species bond?

Basically, I have a catfish, a guppy, and 2 neon tetras that have lived together for over a year. I recently bought 4 more tetras, so now there's 6 in a 75 gallon, but I know catfish can eat neon tetras. I want to put the neons in a 20 long with a really chill betta, but (and it seems silly) I worry the neons would hate moving to a much smaller tank and that theyd... miss each other I guess? I know fish of similar species bond but is it the same with very different species?
Please give me your thoughts, thank you

 

I really don’t think fish remember anything after an hour apart. So yes you can move them but first what kind of catfish?

 

I really don’t think fish remember anything after an hour apart. So yes you can move them but first what kind of catfish?

Synodontis eupterus/featherfin

 

Basically, I have a catfish, a guppy, and 2 neon tetras that have lived together for over a year. I recently bought 4 more tetras, so now there's 6 in a 75 gallon, but I know catfish can eat neon tetras. I want to put the neons in a 20 long with a really chill betta, but (and it seems silly) I worry the neons would hate moving to a much smaller tank and that theyd... miss each other I guess? I know fish of similar species bond but is it the same with very different species?
Please give me your thoughts, thank you

Go ahead and move them, and get four or five more.

 

If you think fish don’t have memories or bond you have never owned American cichlids

 

American cichlids are not tetras, still. Species that pair up and do parental care are kind of able to be personable and show at least some kind of behaviour interpretable as bonding.

For other species, especially schooling fish, I think any personization is highly overrating the fishes cognitive capacities.

 

That’s fine but the comment was “I really don’t think fish remember anything after an hour apart” yes the original question was about tetras but the comment was fish in general.

 

My smallest bronze cory prefers hanging around my agassiziI cory, over the other bronze cories. No clue why, they just always are seen hanging out together.




I think to some extent fish know who theyre friends with. Maybe not human contact social level, but I do think there is some form of attachment to individuals.