fishbalism 

cannibalism but with fish. can be used to describe how the chum bucket in spongebob fed chum burgers to the local living fish.

Oh man, did we commit fishbalism when we ate those chum burgers?

fishbalism by Chumstuff April 23, 2019

Fishalism 

Fish that eat the same breed of fish

Ain't that fishalism when that catfish at that catfish?

Fishalism by T-daddy Mac. March 13, 2024

fishabolism 

When a fish eats another fish

I was reading a book and it was about fishabolism

fishabolism by Dog Elenor April 5, 2017