Most Aggressive Fish

  • We are currently upgrading MFK. thanks! -neo
saw a video a while ago of a guy sticking his hand in the tank an a fish getting mad and bitting him mad him bleed and they where lol about it. anyone seen it
think it was like a wolf fish or something?
 
Lol tiger barbs can be scary by themselves..... Ive seen them eating other fishes eyes. I dont know that they are the "most" aggressive freshwater fish but theyre the worst ive had. but Id have to say piranhas......or are they like...brackish?
 
My rt x tsn ate the fisrt peacock that i bought then ate a african ciclid both within 12 hours. agression depends on the fish"s personality.
 
......but to attack the largest fish just becsaue says something in itself.

It sure does....I have a 18 y/o Paradisefish and years ago, when he was about 12-13 y/o (@ 5") he killed my 9" Red Devil. They were both house in a 75g. I introduced the RD (after completely rearranging the tank) and they were fine overnight. The following day, coming home from work I discovered the RD dead.

I stopped attempting to house him with other fish after that. Throughout the years before that incident, I tried housing him with various aggressive cichlids (in an overstocked-mbuna tank, various CA & SA) with no success. The longest fish he was tank mates with was a large Hemichromis Frempongi, but that only lasted a little over a 1 year.
 
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