In a fight between 10 pirhanas and 10 pike.?

I would take the Pirhanna's simply because they are a schooling fast moving fish. Pike are rather long slower moving fish. The aggressiveness of the Pirhanna would become maximum once one of those pike got bitten and started bleeding. This of course is in the wild. I don't think you'd have just 10 either, but a rather large school. Once you move to a controlled tank enviroment, things begin to change somewhat. However I still favor the Pirhanna because of thier attacks being in a school and rapid where Pike would not school and are slower moving then the Pirhanna.

The pike. The pirahnas normally need to detect blood in the water or a sick animal. If the pike are hungry, they will go for the pirahnas in a minute.

Basically though, there would be no fight, just a feeding frenzy, with the pirahnas concentrating on one pike. One thing that might make a difference would be the water temp.

The pike would win. They are a much more powerful fish even when fairly small. Pirahanas are like sunnies with big teeth. An individual pike is a dangerous fish, while an individual pirahana is like an annoying little brother. Their advantage is that they school.

Pike would eat the Pirahnas.

they're up to 20 times bigger.

The pike.

Definitely the pike, they are evil

none of them would win because they would be to scared of each other to fight,,,,,,,,,,they would only eat injured or defensless ones,,,,,,and each other,,,,come to pinxton,,,,wharf aquatics,,,we have them mixed in tanks,,,,,we even have a garpike which is on its own because that would eat everything as its crossed with an alligater and a pike,,,,wierd i know but its mean,,,,,

I would say the...pike would loose all but two and the pirahnas would perish.

10 piranahs

pirhanas.