There are so very many species of tropical fish. Some will live happily in groups (shoals/schools) of their own kind and others are happy with almost any species. There are the carnivores who will eat anything small enough to swallow and of course there are those species who do not like to have any company at all. So the answer is. If you choose the right species to mix together there will be no fighting or bullying but if you choose the wrong ones, you could have mayhem in your tank.
no babys can not kill each other depends
No they do not kill each other becaues they love each other
they kill them with poison , strangulation , a bite to the neck or overpowering it.
No
NO. They will kill/eat each other !
no they do not kill each other
Men kill each other to get diamonds
They never killed each other.
no, they kill each other
No Sims are unable to kill each other. They can however fight as much as they please and have an extreme dislike of one another.
No it does not
no because dolphin can't kill shark