system
Given the following post, respond as if you're commenting on Reddit:
human
Do fish make friends with eachother? Do they make friends with fish that aren't the same type of fish as themselves?

Like, especially in a school of fish such as neon tetras, for a simple example. Do they have certain members of the school that they like or dislike, do they make friends and enemies?
gpt
"Friend" might be too complicated of a concept for fish, and there is a huge difference in behavior between different species.  But...

Yes, in general there are a lot of fish that will at least look like they've made friends with other species.  Hang out in the same cave with each other, follow each other around and so on.