You can either look at is a cannibalism or survival of the fittest. Many types of fish are built specifically for the act of catching and consuming other fish. The next question is if it is in your genetic design to eat the same species is it still cannibalism or is that a choice?
No, this is an example of survival of the fittest. Some are predators and some are prey. This question relates to the underwater food chain.
Whale-small fishies-plankton- algea?
Yes, some do.
cat fish
becuse thay bite other fish
Yes, many fish eat others, sharks, whales and many other species eat smaller fish. Even in aquariums, fish like piranhas and ciclids (Oscar fish) eat each other.
not most swordfish get along with other fish
It depends on the species of fish. Some will, some won't.
Yes, both male and female betta fish bite. It shouldn't hurt you because they're too small to do any damage to you
Np, but they will bite. Yes, they will fight to the death.
No fish flies do not bite.
depends on how bad it is but ud clean it and put anteseptic on it if its deep go to the doctor.just like any other bite.
Sea grass is highly important! To many fish for shelter and more.
No, they can live alone or with other female bettas. They might bite each other but won't kill.
Only if there is one in a tank they get very fisty , they will bite other fish in your aquarum .
no