How to Raise an Aggressive Fish ?

[danialpit]

Some people keep fish for their beauty. Some people keep fish for the relaxation the hobby brings. Then there are those that keep fish so they can see them eat other fish. Those would be who own predatory fish, such as the Piranha.
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[kylev]

Are you asking a question here or making a statement?

 

[srfisher17]

All fish are predators; even tangs eat a lot of tiny crustaceans, and other animal life, along with their salad.