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MOST AGGRESSIVE FISH

45K views 94 replies 58 participants last post by  amazonjungle 
#1 · (Edited by Moderator)
#86 ·
i think i posted here before. ill add my OWN experience from aggression. a nest protecting female jack dempsey. thats my most aggressive. bullying up a 12 inch oscar, killing a pleco over night...not to be messed with. shes all alone now. i had to rush set up a new tank for her so the tank mates could live in peace.
 
#92 · (Edited by Moderator)
The most AGGRESSIVE fish on earth is the red bellied piranha. you guys are mistaking aggresion with size, ferocity, and intimidation. Look at how they behave in the wild or within tanks. nothing even comes CLOSE.

the most intimidating, ferocious large fish however is The Bull Shark.
 
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